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The Sea of Monsters · Garden Heights
Part 3
for The Sea of Monsters · Part 3 · Chapters 6–8
8 Parts40 min
What Happens in Part 3
Part 3 pushes Percy off the island and onto the water. At the chariot race he leaves Tyson off his team out of embarrassment and drives with Annabeth Chase instead; they win, and then Stymphalian birds pour out of the woods. Tyson fights them bare-handed, Annabeth remembers that noise once drove the flock off, and the camp survives — but Tantalus blames Percy. Then Grover Underwood breaks through the empathy link: he is a prisoner in the Sea of Monsters, stalling a Cyclops who believes he is a bride, and the Golden Fleece that could save Thalia’s tree is in the same place. Tantalus hands the quest to Clarisse La Rue and threatens Percy with expulsion if he goes. That night Hermes finds Percy on the beach, gives him chewable vitamins and a thermos packed with wind, and asks him to remember that Luke Castellan is somebody’s son. Percy, Annabeth, and Tyson take a lifeboat, crack the thermos, and are fired across the Sound to a cruise ship called the Princess Andromeda — where the luxury is real, the passengers are not, and a golden sarcophagus is standing in the ballroom.
What We Will Learn
Section
What you will practice
Vocabulary
Sea and quest words: bearing, adrift, stowaway, reckoning, omen…
Literary Elements
Dream visions, planted gifts, and a narrator who jokes while he is frightened
Cross-Curricular
Finding your position at sea with no instruments: log lines, stars, and swells
Chapter Summary
Ch.
What happens
Ch.6
Demon Pigeons Attack — Percy refuses to put Tyson on his chariot team and races with Annabeth instead. They cross the line first, and the celebration dies as a flock of Stymphalian birds bursts out of the woods with metal feathers and a taste for campers. Tyson wades in bare-handed while Annabeth remembers that noise once drove these birds off, and the Apollo cabin blasts them into archery range. Tantalus blames Percy for the whole mess — and then Grover breaks through the empathy link, terrified, to say he has been captured.
Ch.7
I Accept Gifts from a Stranger — Grover’s message places him in the Sea of Monsters, kept by a Cyclops who believes he is a lady Cyclops in a wedding dress; the same sea holds the Golden Fleece that could heal Thalia’s tree. Tantalus hands the quest to Clarisse La Rue and forbids Percy to go, on pain of expulsion. That night on the beach a jogging stranger turns out to be Hermes, who gives Percy chewable vitamins and a stainless-steel thermos packed with wind, and asks him to remember that Luke is somebody’s son.
Ch.8
We Board the Princess Andromeda — Percy, Annabeth, and Tyson slip out of camp in a lifeboat, and Percy cracks the thermos just enough to be fired across the water at a speed no oar could match. They catch a cruise ship, the Princess Andromeda, and climb aboard to find deck after deck of empty luxury. The crew, when it appears, is monsters and half-blood recruits, and in the ballroom stands a golden sarcophagus. The three stowaways are still working out what it holds when their hiding place stops being a hiding place.
Part 1
Vocabulary
Study 10 key words from Chapters 6–8, then answer each question.
🧭Knowledge Bank · The Words a Navigator Steers By
Navigation · Seafaring VocabularyA navigator’s vocabulary exists because a ship out of sight of land has to be described in numbers rather than landmarks. The direction a vessel points is its heading; the direction from the ship to some other object is a bearing, measured in degrees clockwise from north. Distance is counted in nautical miles, each one equal to a single minute of latitude, which is why a chart’s side edge doubles as its ruler. Speed is given in knots, and the word is literal: crews once streamed a weighted board astern on a line tied with evenly spaced knots and counted how many ran out in a timed interval. Two more words explain most navigation errors. Leeway is the sideways slide the wind pushes a hull into, and set is the push of the current itself. Neither shows up in the steering, and neither can be felt from the deck, so a careful navigator writes down the course actually steered and treats every plotted position as an educated estimate.
tauntv.Ch.6
To mock someone on purpose to provoke them
“Tantalus liked to taunt the camper he blamed for everything.”
flockn.Ch.6
A group of birds moving and feeding together
“The flock came out of the woods with metal feathers shining.”
disgracen.Ch.6
A loss of honor caused by one’s own conduct
“Percy treated his brother as a disgrace, and the shame was his own.”
omenn.Ch.7
A sign taken as a warning about what is coming
“The camp read the burning tree as a very bad omen.”
questn.Ch.7
A long journey undertaken to achieve one goal
“Only one camper was allowed to lead the quest.”
stowawayn.Ch.8
A person who hides aboard a ship to travel unseen
“Three stowaways walked a deck built for paying guests.”
bearingn.Ch.8
The compass direction a vessel is steering toward
“He held the same bearing until the lights appeared ahead.”
adriftadj.Ch.8
Floating along with no power or steering
“A lifeboat left adrift goes wherever the water goes.”
reckoningn.Ch.8
A position worked out by calculation, not by sight
“Their reckoning said the ship should be close, and it was.”
sarcophagusn.Ch.8
A stone or metal coffin, often richly decorated
“A gold sarcophagus stood alone in the empty ballroom.”
ⓘ 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 person who hides aboard a ship in order to travel without permission is a ___.Ch.8
2A ship that is ‘adrift’ is under full power and steering a set course.Ch.8
3A sign that people read as a warning about the future is an ___.Ch.7
4Fill in each blank with the correct word.Ch.6–8
Word choices:flockbearingtauntquest- some words will not be used
A of metal-feathered birds burst out of the woods.
Tantalus gave the to Clarisse and told Percy to stay home.
5A ‘bearing’ is the compass direction you are traveling toward.Ch.8
6A position worked out by calculation instead of by seeing where you are is a ___.Ch.8
7To ‘taunt’ someone is to comfort them after a hard loss.Ch.6
8Fill in the blanks with the correct words.Ch.6–8
Word choices:adriftdisgracestowawayomen- some words will not be used
Percy treated his own brother as a and later knew better.
A boat with no oars and no engine is simply .
9A richly decorated coffin of stone or metal is a ___.Ch.8
10A long journey taken in order to accomplish one goal is a ___.Ch.7
Part 2
Comprehension
Show you understood what happens in Chapters 6–8.
📏Knowledge Bank · How Dead Reckoning Works
Navigation · Dead ReckoningFor most of the history of sailing, a crew out of sight of land knew its position only because someone kept doing arithmetic. The method is called dead reckoning, and it needs exactly three inputs: the course steered, the speed made good, and the time elapsed. Speed came from the chip log, a weighted board thrown over the stern on a line knotted at even intervals; a sailor counted the knots that ran out while a small sandglass emptied, which is where the unit comes from. Course came from the compass, and time came from the glass being turned on schedule and written into the logbook. Multiply speed by hours and you get distance run; lay that distance off along the course line and you have a new position. The weakness is that the arithmetic cannot see the water. Wind and current move the whole ocean beneath the hull, so error accumulates quietly, hour after hour, until a fix from land or sky resets it. Navigators therefore treated every reckoned position as a working guess.
1Why does Percy race the chariot with Annabeth instead of with Tyson?Ch.6
2What interrupts the chariot race in Ch.6?Ch.6
3Tyson fights the birds even though Percy has just left him off the team.Ch.6
4How does Grover reach Percy with news of his capture?Ch.6–7
5Write the numbers 1–5 in the boxes to show the correct order of events in Chapters 6–8. Number 1 = what happens first.Ch.6–8
Hermes meets Percy on the beach and hands over two gifts.
Tantalus awards the quest to Clarisse and forbids Percy to go.
The three of them climb aboard the Princess Andromeda.
Stymphalian birds swarm the camp and Tyson fights them off.
Percy and Annabeth win the chariot race.
6Tantalus chooses Percy to lead the quest into the Sea of Monsters.Ch.7
7What two gifts does Hermes give Percy on the beach?Ch.7
8How do Percy, Annabeth, and Tyson get far out to sea so quickly?Ch.8
9The Princess Andromeda turns out to be an ordinary cruise ship full of vacationing families.Ch.8
10What do the three of them find standing in the ship’s ballroom?Ch.8
Part 3
Literary Elements
Understanding HOW and WHY Rick Riordan tells the story across Chapters 6–8.
💤Knowledge Bank · The Dream That Delivers the Plot
Literary Craft · Dreams and Planted ObjectsRiordan writes in first person, which creates a hard problem: Percy can only report what Percy sees, yet the reader has to learn what is happening a thousand miles away. The solution is the demigod dream, a device borrowed from very old storytelling in which sleep is a channel rather than a pause. Homer used it, Shakespeare used it, and here the empathy link makes it feel earned instead of convenient, because it costs Percy something to receive. The second device in these chapters is the planted object. Hermes gives away two gifts whose purpose is withheld, and the reader files them away as foreshadowing without knowing which will matter. A gift that is explained on the spot is equipment; a gift left unexplained becomes a promise. Riordan pays it partly in Chapter 8 and holds the rest back. Notice, too, the narrator’s constant joking. The understatement is not decoration — it is the reason a chapter about metal birds tearing at campers stays readable, and it is a technique the reader can name and borrow.
Dream vision
Riordan delivers plot while his hero sleeps: Grover’s panic arrives through the empathy link, not through anyone explaining it.
Foreshadowing
Hermes hands over a thermos and a bottle of vitamins long before the reader is told what either one is for.
Understatement
The narrator jokes about demon pigeons and cruise-ship snacks, and the comedy is what makes the fear readable.
1Grover’s message reaching Percy while he is unconscious is an example of ___.Ch.6–7
2Fill in each blank with the correct literary term.Ch.6–8
Word choices:foreshadowingunderstatementsonnetrefrain- some words will not be used
A gift whose purpose is withheld is .
Calling killer birds demon pigeons is .
3Why does Riordan let Hermes hand over two gifts without explaining them?Ch.7
4The novel is narrated in the third person by an outside observer.Ch.6–8
5The narrator’s joking tone during the bird attack mainly works to ___.Ch.6
6Percy leaving Tyson off the chariot team sets up which later pattern?Ch.6–8
7Foreshadowing means telling the reader plainly what is going to happen next.Ch.6–8
8Fill in each blank with the correct literary term.Ch.6–8
Word choices:suspensenarratorstanzarhyme- some words will not be used
Cutting away just as the hiding place fails builds .
Percy is both the hero and the of this story.
9Because Percy narrates, the reader learns about Grover only when Percy does.Ch.6–8
10Chapters 6–8 mainly work to ___.Ch.6–8
Part 4
Think Deeper
Four deeper challenges — no single-word recall. Read, weigh the evidence, and reason it out.
🌌Knowledge Bank · Steering by Things That Do Not Move
Critical Thinking · Fixed Reference PointsEvery method of finding yourself depends on something you have agreed to treat as fixed. At sea that something was the sky. Earth turns beneath a star field that shifts so slowly it is effectively still for a human lifetime, so the angle between the horizon and a known star is a measurement anyone, anywhere, can repeat and check. That is what makes it a reference rather than an opinion. Dead reckoning has no such anchor. It builds each new position on the last one, so a small mistake is inherited by every position after it, and the error accumulates instead of canceling out. This is why navigators combined the two, running the arithmetic between fixes and correcting hard whenever a star or a coastline gave them the truth. The habit transfers directly to thinking. An argument built only on its own earlier steps drifts exactly like a reckoned ship, and the only cure is the same: stop, find something outside the chain that can be independently checked, and re-fix your position.
Think back over these chapters. A finish line arrives and nobody cheers, because the sky above the track has filled with wings that ring like dropped cutlery. A brother who was told he was not wanted on the team walks straight into the middle of it. Later, on a dark beach, a jogger stops to talk and turns out not to be a jogger, and leaves behind a thermos that is heavier than it looks. Then a stolen lifeboat, a lid cracked a quarter turn, and a wind that treats the water like a runway. Ahead, a lit ship stands on the horizon with every deck glowing and not one passenger at the rail.
Original passage written for Garden Heights — not a quotation from the novel.
1Claim: “Chapters 6–8 test Percy on loyalty before they test him on sailing.” — choose the two details that best prove it.Claim & Evidence
2Position you can check, or Position you have to trust? Tap each detail to send it left or right.Sort into two
◄ Position you can checkPosition you have to trust ►
3Match each cause to its result. For each cause, pick its result.Cause & Effect
Percy refuses to let Tyson join the chariot team→
Grover breaks through the empathy link in a panic→
Tantalus forbids Percy to leave on pain of expulsion→
Percy cracks open the thermos Hermes gave him→
4Fill both blanks to complete the reasoning.Build the Argument
A navigator using dead reckoning still hunts for a star sight because , which shows that .
Part 5
Standardized Test
Reading passage · Finding Your Way With No Map · Central Ideas & Words in Context · 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×4 — 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
Long before satellites, a sailor out of sight of land still had to know where the ship was. The oldest answer is dead reckoning, built from three measurements: the compass course steered, the speed made good, and the time elapsed. Crews measured speed with a chip log, a weighted board streamed astern on a knotted line, counting the knots that ran out as a sandglass emptied. Speed times hours gave the distance run, and laying that along the course line gave a new position. The arithmetic was honest, but wind and current push a hull sideways unseen, so the error grew with every hour.
Stars corrected the drift. The height of a known star above the horizon reports how far north or south the observer stands. Pacific and Arab navigators memorized which stars rose and set at which points, and European sailors later measured that height with a quadrant and then a sextant. When a star passes directly overhead, at its zenith, the ship sits at that star’s latitude. Latitude was therefore solvable for centuries before longitude, which had to wait for a clock accurate enough to carry home time to sea.
Navigators in the Marshall Islands read the water instead of the sky. Ocean swell travels in long, orderly trains that bend around an island and cross behind it, leaving a chop a trained pilot could feel through a canoe hull. Students learned the patterns from stick charts, frames of palm rib and shell mapping how waves curve rather than where coastlines run. A pilot who felt two trains meeting knew an unseen island lay along that seam, often a day before anyone could see it. None of these methods promised certainty; each gave a position good enough to keep steering, and at sea that is enough.
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, dead reckoning uses which three measurements?TOEFL · Factual Information
3In the passage, reckoning means ___.SAT · Words in Context
4According to the passage, why does dead-reckoning error grow over time?TOEFL · Factual Information
5According to the passage, how did crews measure a ship’s speed?TOEFL · Factual Information
6In the passage, zenith refers to ___.TOEFL · Vocabulary
7According to the passage, why was longitude solved later than latitude?TOEFL · Factual Information
8In the passage, swell means ___.SAT · Words in Context
9The passage suggests that a Marshallese stick chart was valuable mainly because it ___.SAT · Inference
10Which Part 3 situation 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 3 “Steering by Guess”
A navigator with no instruments keeps sailing anyway, holding a course and correcting whenever something reliable comes into view. Percy leaves camp the same way — sure of the goal, unsure of everything else. Write about a time you had to keep going without knowing exactly where you stood. What did you steer by, and what finally told you whether you were on course? 6–10 sentences.
You can start with: “I could not see where I was, so I picked one thing to steer by...”
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 3 Complete!
You finished Chapters 6–8 of The Sea of Monsters.
Here are your auto-graded results:
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points out of 100
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.
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.
