The Sea of Monsters · Garden Heights

Part 6

for The Sea of Monsters · Part 6 · Chapters 14–15

8 Parts40 min

What Happens in Part 6

The pirate ship reaches the island of the Cyclops, and the geography alone is a warning: cliffs, a ravine with a rope bridge, and a green meadow full of enormous sheep that strip anything thrown to them down to bone in seconds. Percy and Annabeth work out that the meadow cannot be crossed on foot and use her invisibility cap and the shoreline to reach Polyphemus’s cave instead. Inside, the wedding is already under way: Grover stands in a bridal gown and veil, passing as a lady Cyclops, and buying nights by insisting his bridal train is not finished — the same delaying trick Penelope used in the Odyssey. Better still and worse, Clarisse is alive, held in the cave as a prisoner. The Golden Fleece hangs where Polyphemus can keep his single eye on it. When Percy is discovered he reaches for the oldest weapon on the island and gives his name as Nobody — the name Odysseus used on this same Cyclops — and the monster hears the name that blinded him coming out of the dark again. The rescue that follows is loud, improvised, and run entirely on stories older than anyone in the cave.

What We Will Learn

Section	What you will practice
Vocabulary	Words for stone and hollow: cavern, crevice, ravine, porous, ruse…
Literary Elements	Allusion to the Odyssey, dramatic irony, and suspense inside a one-door setting
Cross-Curricular	How a cave is made — dissolving limestone, breaking waves, and why a cave traps what walks in

Chapter Summary

Ch.	What happens
14	We Meet the Sheep of Doom — The ship reaches the Cyclops’s island, and Percy’s empathy-link dreams of Grover give way to the real place: cliffs, a ravine crossed by a rope bridge, and a meadow of enormous sheep between the shore and the cave. A test throw settles what the flock eats, and the answer is anything with meat on it, stripped to bone before it lands twice. Walking across is out of the question, so the rescue becomes a problem of routes and timing, with Annabeth’s invisibility cap doing the work that a sword cannot.
15	Nobody Gets the Fleece — Inside the cave the wedding is nearly upon them. Grover, in gown and veil, has been passing as a lady Cyclops and stalling Polyphemus night after night by claiming the bridal train is unfinished, and Clarisse turns out to be alive and held prisoner in the same cave. The Golden Fleece hangs under the Cyclops’s one eye. Caught in the dark, Percy answers the monster’s demand for a name with the oldest joke in Greek literature — Nobody — the name Odysseus once used on this very Cyclops, and the fight for the Fleece begins with a monster roaring at a word.

Ch.

What happens

14

We Meet the Sheep of Doom — The ship reaches the Cyclops’s island, and Percy’s empathy-link dreams of Grover give way to the real place: cliffs, a ravine crossed by a rope bridge, and a meadow of enormous sheep between the shore and the cave. A test throw settles what the flock eats, and the answer is anything with meat on it, stripped to bone before it lands twice. Walking across is out of the question, so the rescue becomes a problem of routes and timing, with Annabeth’s invisibility cap doing the work that a sword cannot.

15

Nobody Gets the Fleece — Inside the cave the wedding is nearly upon them. Grover, in gown and veil, has been passing as a lady Cyclops and stalling Polyphemus night after night by claiming the bridal train is unfinished, and Clarisse turns out to be alive and held prisoner in the same cave. The Golden Fleece hangs under the Cyclops’s one eye. Caught in the dark, Percy answers the monster’s demand for a name with the oldest joke in Greek literature — Nobody — the name Odysseus once used on this very Cyclops, and the fight for the Fleece begins with a monster roaring at a word.

Part 1

Vocabulary

Study 10 key words from Chapters 14–15, then answer each question.

📚Knowledge Bank · Words for Stone and Hollow

Language · Words of RockCave words are precise, and the precision is worth having. A crevice is a narrow crack, the kind water uses as a doorway; a cavern is a large chamber inside a cave system, not a synonym for the whole thing; a ravine is a steep, narrow valley cut by running water, which is why one so often runs beside a cave that the same water helped make. Rock that is porous is full of tiny openings, so it lets water travel through it instead of turning water away, and rock that water can erode is rock that will be worn down grain by grain over centuries. Set beside those geology words are the chapters’ human words, and both of them are about being fooled. A captive is somebody who cannot leave, no matter how the door is described to her. And an unfinished wedding train, unpicked in the dark each night to buy one more day, is the book’s finest ruse.

cavernn.Ch.15

A large cave, or a large chamber inside one

“The cavern swallowed every sound the rescue party made.”

crevicen.Ch.14–15

A narrow crack in rock

“Water finds a crevice long before it finds a room.”

ravinen.Ch.14

A deep, narrow valley with steep sides

“A rope bridge is the only honest way across that ravine.”

captiven.Ch.15

A person held prisoner and unable to leave

“Clarisse spends these chapters as a captive, not a casualty.”

rusen.Ch.15

A trick meant to fool someone into believing something false

“An unfinished bridal train is a ruse that buys another night.”

porousadj.Ch.14–15

Full of tiny openings that let water pass through

“Porous rock is rock that has already agreed to leak.”

erodev.Ch.14–15

To wear something away slowly, especially by water or wind

“Rain can erode solid limestone given enough centuries.”

lumberv.Ch.15

To move heavily and clumsily

“Something enormous began to lumber toward the cave mouth.”

stenchn.Ch.15

A strong, foul smell

“The stench inside told them what the flock was really for.”

deceivev.Ch.15

To make someone believe something that is not true

“It takes nerve to deceive a monster from inside his own house.”

ⓘ The vocabulary words in this list are selected to help you understand and complete this workbook. Some may not appear verbatim in the original novel.

1A narrow crack in rock is a ___.Ch.14–15

2‘Porous’ rock is solid all the way through and lets no water pass.Ch.14–15

3A deep, narrow valley with steep sides is a ___.Ch.14

4To wear something away slowly, especially by water or wind, is to ___.Ch.14–15

5Fill in each blank with the correct word.Ch.14–15

Word choices:caverncaptiverusestench- some words will not be used

Grover’s unfinished bridal train is a .

Clarisse is being held in the cave as a .

6A ‘stench’ is a faint and pleasant smell.Ch.15

7To ‘lumber’ is to move heavily and clumsily.Ch.15

8A large cave, or a large chamber inside one, is a ___.Ch.15

9Fill in the blanks with the correct words.Ch.14–15

Word choices:deceiveerodeporousravine- some words will not be used

Rainwater can solid limestone over thousands of years.

A rope bridge crosses the on the way to the cave.

10To make someone believe something that is not true is to ___ them.Ch.15

Part 2

Comprehension

Show you understood what happens in Chapters 14–15.

🌌Knowledge Bank · How Water Carves a Cave

Geology · Cave FormationMost of the world’s big caves are hollowed out of limestone, a rock built from the crushed shells and skeletons of sea creatures. Limestone has one useful weakness: it dissolves in weak acid. Rain is naturally acidic, because falling water absorbs carbon dioxide from the air and picks up more from soil, and that faintly sour water is the only tool the process needs. The work begins along the joints, the natural cracks running through the rock. Water sinks into them, widening each one a fraction at a time, until several join into passages big enough to carry a stream underground. A river inside rock cuts faster than a river on top of it, and a cave system grows the way a tree of tunnels grows, branching and sloping and following whatever weakness it is offered. Later the water table drops, the passages drain, air moves in, and what used to be a drain becomes a room inside the rock.

1What is dangerous about the sheep on the island?Ch.14

2How does Grover keep the wedding from actually happening?Ch.14–15

3Grover is disguised as a lady Cyclops in a wedding dress and veil.Ch.14–15

4What name does Percy give when Polyphemus demands one?Ch.15

5Write the numbers 1–5 in the boxes to show the correct order of events in Chapters 14–15. Number 1 = what happens first.Ch.14–15

Percy tells Polyphemus that his name is Nobody.
A test throw shows exactly what the sheep eat.
Grover is found in a bridal gown and Clarisse in chains.
The ship reaches the island of the Cyclops.
The party works out a route past the flock to the cave.

6Clarisse turns out to be alive and held prisoner on the island.Ch.15

7Why does the name Percy chooses enrage Polyphemus?Ch.15

8What does Annabeth use to move around the island without being seen?Ch.14

9Percy and Annabeth simply walk straight across the sheep meadow without any trouble.Ch.14

10What is Polyphemus guarding besides his bride?Ch.14–15

Part 3

Literary Elements

Understanding HOW and WHY Rick Riordan tells the story across Chapters 14–15.

🧠Knowledge Bank · A Hero Named Nobody

Literary Craft · The Older StoryThese two chapters are one long conversation with a poem written roughly three thousand years ago. When Percy answers a monster with the name Nobody, he is repeating an allusion so old it has become a joke everyone in the room ought to recognize, and when Grover buys another night by claiming his bridal train is unfinished, Riordan is handing him Penelope’s weaving trick from the same poem. Allusion is efficient: one borrowed name delivers a whole history of blindness and revenge without a paragraph of explaining. Alongside it these chapters run on dramatic irony, the gap between what readers know and what a character knows. We know who is under the veil. Polyphemus does not, so his every polite remark to his bride is funny and frightening at once. Then the setting adds the last turn of the screw, because a cave with a single mouth converts every clever plan into a race, and Riordan spends the whole of Chapter 15 winding that suspense.

Allusion

Percy calls himself Nobody — the trick Odysseus played on this same Cyclops — and Grover buys nights with a wedding train he unpicks, which is Penelope’s trick worn as a gown.

Dramatic irony

Readers know exactly who is under the veil long before Polyphemus does, so every compliment the Cyclops pays his bride lands as a joke aimed over his head.

Suspense

A wedding date, a captive in chains, and a cave with one entrance: Riordan sets three clocks running and then makes the meadow impossible to cross.

1Percy calling himself Nobody is an example of ___.Ch.15

2Fill in each blank with the correct literary term.Ch.14–15

Word choices:allusionironysonnetmeter- some words will not be used

A deliberate reference to an older story is an .

Readers knowing what Polyphemus does not is dramatic .

3Readers know Grover is not a lady Cyclops long before Polyphemus does. That gap is ___.Ch.14–15

4An allusion works just as well for a reader who has never heard the older story.Ch.14–15

5Grover unpicking the wedding train each night borrows a trick from ___.Ch.14–15

6The cave setting raises the suspense mainly because ___.Ch.15

7Dramatic irony means the reader knows something that a character in the story does not.Ch.14–15

8Fill in each blank with the correct literary term.Ch.14–15

Word choices:suspensedisguisestanzacouplet- some words will not be used

A wedding date nobody can postpone forever builds .

Grover survives inside the cave behind a .

9Riordan invented the Nobody trick himself, and it appears in no older story.Ch.15

10Riordan reuses Odysseus’s tricks in these chapters mainly to ___.Ch.14–15

Part 4

Think Deeper

Four deeper challenges — no single-word recall. Read, weigh the evidence, and reason it out.

🕯Knowledge Bank · Easy to Enter, Hard to Leave

Safety Science · Caves and RescueCaves are natural traps, and the reasons are ordinary rather than mysterious. Past the first bend the darkness is total, and human eyes never adapt to it, so a lost light means a lost route. Passages branch, and a branch that was obvious walking in can be invisible walking out, because a turn looks nothing like itself reversed; cavers call the habit of turning around to memorize the way back the single most useful thing a beginner can learn. Cave air sits near ten degrees Celsius year round, and wet clothing in still, damp air drains body heat fast enough to bring on hypothermia in a person who is merely sitting and waiting. Floors slope, and sloping floors always tempt a lost walker downhill, toward water. Rescue teams are slow because a stretcher must be passed by hand through spaces built for one body at a time. Which is why the first rule of caving is not courage. It is preparation.

Think back over these chapters. A ship comes in on an island that looks like a postcard until somebody throws a scrap into the meadow and the flock strips it to bone before it stops bouncing. There is a ravine with a rope bridge, cliffs on every side, and one cave mouth that the whole rescue has to fit through. Inside it a satyr in a bridal veil is running the longest delaying action in the book, unpicking a wedding train stitch by stitch every night so the ceremony slides one more day into the future. A demigod everyone had written off is alive and in chains. And when the dark finally asks the intruder for a name, he answers with a word that is three thousand years old and still lands like a punch: Nobody.

Original passage written for Garden Heights — not a quotation from the novel.

1Claim: “In Chapters 14–15, the rescue runs on old stories and clever tricks rather than on strength.” — choose the two details that best prove it.Claim & Evidence

2Solution cave — water dissolves the rock, or Sea cave — waves break the rock? Tap each detail to send it left or right.Sort into two

◄ Solution cave — water dissolves the rockSea cave — waves break the rock ►

3Match each cause to its result. For each cause, pick its result.Cause & Effect

A scrap of food lands out in the meadow→

Grover claims the bridal train is still unfinished→

Percy gives his name as Nobody→

Annabeth puts on her Yankees cap→

4Fill both blanks to complete the reasoning.Build the Argument

Riordan stages the last part of the rescue inside a cave because , which shows that .

Part 5

Standardized Test

Reading passage · How a Cave Is Made · Words in Context & Central Ideas · SAT & TOEFL-style practice

🎯 What this section practices

You already have these skills from the sections above — here they appear in the exact question types the SAT and TOEFL use. Read the passage (the highlighted words are tested below), then answer. Tap an answer to select it, then tap it again to confirm — you can change your choice until you confirm.

SATCentral Ideas — the main point of the passage as a whole
TOEFLFactual Information ×3 — a fact stated directly in the passage
SATWords in Context ×2 — what a word means the way this passage uses it
TOEFLVocabulary — the meaning of a tested word as this passage uses it
SATInference ×2 — a conclusion the passage supports without ever stating it outright
TOEFLProse Summary — choosing the three sentences that capture the main ideas

Most of the world’s large caves are hollowed out of limestone, a rock built from the crushed shells and skeletons of sea creatures. Limestone has one useful weakness: it is slightly soluble in acid. Rain is naturally a weak acid, because falling water absorbs carbon dioxide from the air and takes up more of it from soil, and that faintly sour water is the only tool the job requires. Given enough time, ordinary rain dissolves solid stone.

The work begins along cracks. Water percolates down through the natural joints in the rock, widening each crack a fraction at a time, until some of them join into passages large enough to carry a stream underground. A river running inside rock cuts faster than one running on top of it, and a cave system grows the way a tree of tunnels would grow, branching and sloping and following whatever weakness the stone offers. Where the water table later drops, the passages drain and fill with air, and what was once a drain becomes a room.

Sea caves form a different way and far more quickly. Waves attack a headland at one weak seam, hammering it with water and with the sand and stones the water is already carrying, until a notch becomes a hollow and the hollow becomes a chamber. Inside either kind of cave, dripping water leaves behind the mineral it can no longer hold, and every drop adds a thin deposit to a stone spike growing from the ceiling or the floor. Caves are also natural traps. One entrance, no light past the first bend, and a floor that slopes gently downward: a walker gets in easily and finds the way out much harder to read.

Original passage written for Garden Heights — not a quotation from the novel.

1What is the main idea of the passage?SAT · Central Ideas

2According to the passage, why is rain naturally acidic?TOEFL · Factual Information

3In the passage, soluble means ___.SAT · Words in Context

4In the passage, percolates means ___.TOEFL · Vocabulary

5According to the passage, what happens when the water table drops?TOEFL · Factual Information

6In the passage, a deposit is ___.SAT · Words in Context

7The passage suggests that sea caves and limestone caves differ mainly in ___.SAT · Inference

8Prose Summary (TOEFL). The passage explains how caves are formed and why they are dangerous to enter. This TOEFL task lists six sentences; choose the THREE that best capture the passage’s main ideas. The other three do not belong — they state minor details or ideas the passage does not present.TOEFL · Prose Summary

9According to the passage, what is limestone built from?TOEFL · Factual Information

10Which detail from Chapters 14–15 does this passage BEST explain?SAT · Inference

Part 6 · Optional

Creative Writing

A bonus challenge to practice your English. Take your time and have fun with it.

About This Section

This writing task is optional and is not part of your auto-graded score. The feedback below checks only the basics — length, spelling, and grammar — not whether your ideas are right or wrong. It is meant for classroom discussion and creative practice, so feel free to use your imagination!

Writing Task — Part 6 “The Trick That Buys You Time”

Grover cannot fight Polyphemus and he cannot outrun him, so he does the only thing left: he invents a reason the wedding cannot happen tonight, and then he invents it again tomorrow. Write about a time you could not solve a problem head-on and had to buy yourself time instead. What was the problem, what did you do, and what did the extra time let you manage? 6–10 sentences. End by saying whether buying time was the right call.

You can start with: “There was no way to fix it that day, so instead I...”

0 / 40 words minimum

🗣 Teach It · Just for Fun (optional)

No right or wrong — close the screen and tell someone nearby what happened in this part. Can’t find anyone? Tell yourself out loud. The moment you teach it, you truly understand it.

Part 6 Complete!

You finished Chapters 14–15 of The Sea of Monsters.

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Your Writing

Your writing was checked automatically for length, spelling, grammar, and whether you included the key parts of the scene. Scroll back to Part 5 anytime to read your feedback and improve your work.

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Independent study guide by Garden Heights. Not affiliated with or endorsed by Rick Riordan. Contains original analysis only; no text from the novel is reproduced. Reference text: This workbook follows Rick Riordan’s classic text (the standard Puffin edition sold worldwide). Revised 2023 UK editions change some wording and may not match the vocabulary studied here.