The number of lines in Great Prophecy Chiron refused to tell Percy at first.
4 lines.
This monster Percy defeats in St. Louis is technically immortal and returns later as “Hot Wings.”
Chimera
The very first bead Percy ever earns has this symbol.
a trident
This god disguises himself as a mortal teacher in The Titan’s Curse.
Apollo
This camper teaches Percy how to sword-fight on his first day.
Luke Castellan
This demigod is the first to hear the Last Olympian prophecy in full.
Nico di Angelo
The only monster Percy ever admits "actually scared him" more than Kronos.
Who is Dr. Thorn (the Manticore)?
This cabin is the only one that has a different number of bunks every time it’s described.
Cabin 11 (Hermes)
This Olympian is the only one who refuses to swear on the River Styx at the end of The Last Olympian.
Hades
This girl is the only other child of Zeus known before Jason Grace existed.
Thalia Grace
The one who delivers the prophecy about Percy's 16th birthday to the Olympians.
Who is the Oracle of Delphi (speaking through Rachel Dare)?
This creature in the Labyrinth demands a “trade” and gives Annabeth the phrase “Go left” as a clue.
the Sphinx?
The magic border around camp is created by this specific tree sapling.
the pine tree of Thalia Grace
This minor god testifies against the Olympians during the Battle of Manhattan.
Who is Morpheus? (He puts the whole city to sleep.)
This character’s scarf is actually a magic weapon that nearly kills Percy.
Kelli (the empousa)
This is the first line of the Great Prophecy.
“A half-blood of the eldest gods…”?
This monster speaks in perfect English and pretends to offer Percy “hospitality” before attacking in Sea of Monsters.
Polyphemus
The camp’s arena originally belonged to this god.
Ares
This god gives Percy the sand dollar he forgets to use until the end.
Posieden
This mortal was the one who reported Percy missing in The Lightning Thief.
Mr. Brunner/Chiron
This prophecy technically didn’t rhyme in Ancient Greek but was translated to rhyme in English.
the Prophecy of the Seven?
This ancient being Percy wakes up in Mount St. Helens—whose awakening later causes the eruption.
Typhon
This counselor briefly takes over Cabin 3 when Percy leaves for the first quest in book 5.
Connor Stoll
The only god who never fully appears once in the original series.
Hera
This demigod died in the Labyrinth after being turned into a tree.
Chris Rodriguez’s friend—Castor of Cabin 7