Deaths (CHB)

This a list of those who died in the series. However, keep in mind that monsters on this page may, will, or have already reformed.

Before the series

 * Maria di Angelo - Died from a hotel explosion caused by Zeus, which was intended for Nico and Bianca di Angelo's deaths.
 * Laura Jackson - Died in a plane crash.
 * Jim Jackson - Died in a plane crash.
 * Rich Jackson - Died from cancer
 * The Oracle's host - Died over thirty years before The Lightning Thief and became mummified after Hades cursed her.
 * Grover's Uncle Ferdinand - Died after turned to stone by Medusa.
 * Ms. Grace - Died in a car crash due to being drunk.
 * Esperanza Valdez - Killed in a fire in her workshop which was caused by Gaea, who later made Leo believe that he himself had accidentally caused the fire.
 * Marie Levesque - Killed when Alcyoneus almost rose.
 * Hazel Levesque - Killed when Alcyoneus almost rose because of her. Brought back to life by Nico di Angelo
 * Michael Varus and his group from Camp Jupiter are defeated in Alaska, their eagle stolen
 * Sammy Valdez - Died of old age
 * Various demigod children of Athena who were searching for the Athena Parthenos. Some were killed by:
 * Either killed by knife or flame by the followers of Mithras.
 * Killed by Otis and Ephialtes.
 * Or killed by Arachne (or one of her traps).

The Lightning Thief

 * The Minotaur - Percy killed it with one of its horns.
 * Reformed some time before The Last Olympian, but killed again by Percy.
 * Hellhound- shot in the side by Chiron.
 * The Furies - Alecto was killed at Metropolitan Museum by Percy Jackson, but reformed later in The Lightning Thief.
 * All three Furies were killed on a bus by Percy Jackson, Annabeth Chase, and Grover Underwood, but later reformed again.
 * Medusa - Head sliced off by Percy.
 * Procrustes - Head sliced off by Percy.
 * Unnamed preacher - fell off a cliff during a police chase because he was scamming people. Percy and Grover recognized him in the Underworld.
 * A Boar - drowned by Percy in the fight against Ares.
 * Gabe Ugliano - Killed when Sally Jackson turned him to stone with Medusa's head. Sally sells him as a statue named The Poker Player.
 * Pit Scorpion - chopped in half by Percy.

The Sea of Monsters

 * Laistrygonian Giants- killed by Annabeth, Tyson, and Percy.
 * Joe Bob - stabbed by Annabeth.
 * Skull Eater - Killed when Tyson punched him in the face.
 * Marrow Sucker - Killed when Tyson Deflected a Flaming Dodgeball.
 * Stymphalian Birds - Killed by Apollo Demigods in Camp Half-Blood.
 * The Hydra - Killed by the CSS Birmingham's cannons.
 * Confederate Sailors - When the CSS Birmingham exploded (though technically already dead).
 * Oreius - shot in the mouth by a centaur with a bow and arrow.
 * Agrius - Kicked in the head by Blackjack.
 * Probably other monsters killed by campers while the Questers are away.

The Titan's Curse

 * Nemean Lion - Killed by space food, and Zoe's arrows at the Smithsonian
 * Dr. Thorn the Manticore - Killed by Dionysus
 * Talos (prototype) - Killed by Bianca di Angelo.
 * Bianca di Angelo - Died when the malfunctioning Talos prototype, a creation of Hephaestus, toppled over onto an electric cable with her inside. Her body was never found.
 * Skeleton Warrior(s) - banished to the Underworld by Bianca. Another group were sent to the Underworld by Nico di Angelo
 * Zoë Nightshade - Killed by Ladon's poison and Atlas' (her father) final blow.
 * There were many monsters killed when Dr. Chase rescued everyone.

The Battle of the Labyrinth

 * Tammi - Killed by Percy in Goode High School
 * A boy from Seattle - He was mentioned by Kelli to Luke that he was just a snack.
 * Antaeus - stabbed by Percy in his third and final duel.
 * Dracaenae - Killed in Percy's first duel (out of three).
 * Centaur - Killed by a Laistrygonian Giant in a duel.
 * Geryon- Killed by Percy shooting an arrow hitting all three of his hearts.
 * Pan - Faded away because of the nature and wild dying.
 * Many animals (including Dede the Dodobird, a sabertooth tiger, and a wooly mammoth) were turned to dust when Pan faded.
 * An Unnamed Satyr - trampled on and presumably killed by a Hellhound (see below) Percy started to help him when Juniper's tree started burning.
 * A Hellhound - After killing a Satyr, it targeted Percy and was stabbed with Anaklusmos.
 * Kelli - Killed by Annabeth in the Labyrinth.
 * Kampê - Killed by Briares near Zeus's Fist.
 * Lee Fletcher, son of Apollo - Squashed by a giant.
 * Castor, son of Dionysus - Brought down in battle.
 * Daedalus - Nico released his spirit.
 * There were many unrecorded deaths in the Battle of the Labyrinth including those of many Camp Half-Blood campers, enemy demigods, and monsters.

The Demigod Files

 * Keres - Killed by Percy, Thalia, and Nico during an ambush.
 * Stymphalian Birds - Killed by Percy and Clarisse
 * Myrmekes - Electrocuted and burned by the Bronze dragon, in order to rescue Beckendorf.
 * The Bronze Dragon - shut down by Beckendorf after it went rogue. Later rebuilt.

The Last Olympian

 * Charles Beckendorf - Died in the explosion of the Princess Andromeda.
 * Hundreds of Kronos's warriors- Destroyed in the explosion of the Princess Andromeda.
 * The Minotaur - Reformed since The Lightning Thief, though is soon killed by Percy again with his own axe.
 * Michael Yew - Died (presumably) when Percy stabbed Riptide into Williamsburg Bridge.Luke.jpg
 * Leneus - Killed in The Battle of Manhattan, reincarnates into a Laurel tree.
 * Hyperion - Turned into a maple tree by Grover and the satyrs.
 * The Clazmonian Sow - Killed by Percy, with the assistance of a few automatons.
 * Silena Beauregard - Died fighting a drakon.
 * Lydian Drakon - Killed by Clarisse after Silena's death
 * An unnamed Child of Ares - Eaten by the Lydian Drakon
 * Queen Sess - Shot by Chiron with a bow and arrow.
 * Ethan Nakamura - died when a shard of his own sword hit him in the stomach after he slashed at Kronos. He was later sucked into a fissure on Olympus.
 * Kronos - Dissolved to dust when Luke Castellan stabbed himself with Annabeth's dagger. He is not dead, but has spread so thin that he'll probably never be able to form a consciousness again (as said by Hermes).
 * Luke Castellan - Killed himself to stop Kronos from evolving into his true form.
 * Unknown child of Apollo - Is seen being dragged off by hellhound, likely dead.
 * A Hunter- Said to be knocked out of a tree by enemy arrows.
 * The Oracle, who was already dead, was now dissolved so that Rachel Elizabeth Dare could take the spirit of the Oracle.
 * There were many unrecorded deaths in The Battle of Manhattan as there was simply too many to count and too little time.
 * Many Nature Spirits were killed by Titan Army Scouts.
 * Typhon-  Chained, stabbed by Poseidon, and sent down a "slip-n-slide" into Tartarus.
 * 20 Satyrs at Fort Washington.

The Lost Hero

 * Venti - Dissolved when Jason stabbed them.
 * Sump - Killed by Leo's Machine (reformed almost instantly)
 * Torque - Killed by Leo's Machine (reformed almost instantly)
 * Ma Gasket - Smashed by a Machine (reformed almost instantly)
 * Festus - Shot down by lasers
 * Medea - Died in an explosion
 * Two sun dragons - Destroyed in an explosion
 * King Midas - Presumably killed by a crowd of his victims
 * Lityerses - Turned to gold
 * Earthborn - Killed by Jason, Piper, and Leo. Several were also killed by the Hunters later
 * Lycaons - Killed by the Hunters of Artemis
 * Enceladus - Killed by Jason with a lighting bolt from Zeus

The Son of Neptune

 * Stheno - Drowned by Percy in the Tiber (later reforms)
 * Euryale - Drowned by Percy in the Tiber (later reforms)
 * Gwen - Presumably killed by Octavian (comes back due to the open Doors of Death)
 * Three Basilisks - Killed by Frank's skeletal warrior Gray
 * Phineas - Poisoned with Gorgon blood by Percy during a bet.
 * Otrera- killed by Hylla twice
 * Six Laistrygonians - Killed by Frank with Gray
 * Laistrygonian Giants - Killed during the escape from the Zhang mansion.
 * Gryphons - Killed by Percy, Frank and Hazel (reformed).
 * Shade Army - Killed by Percy when he destroyed the frozen camp.
 * Alcyoneus - Killed by Frank and Hazel with the help of Arion.
 * Enemy Cyclopes - Killed by the Fifth Cohort.
 * Wild Centaurs - Killed by the Third and Fifth Cohorts.
 * Karpoi Spirits - Killed by Percy with the Eagle.
 * Basilisks - Killed by Percy with the Eagle.
 * Multiple Earthborn - Killed by Percy with the Eagle. Some killed by Tyson with the help of Ella.
 * Hundreds of other monsters - Killed by the Amazons and the 12th Legion.
 * Polybotes - Killed by Percy with Terminus' head.
 * Implied Roman campers- in battle at Camp Jupiter
 * Multiple enemy Hellhounds killed by the Roman campers.

The Demigod Diaries

 * Halcyon Green - sacrificed himself in an explosion of Greek Fire to let Luke Castellan and Thalia Grace escape
 * Leucrotae - two killed by Greek fire and one was engulfed by deadly curtain drapes
 * Cacus - hit with metal claw by Annabeth then shot with Hermes' caduceus in laser mode by Percy
 * Burly Black - set on fire by Lamia to horrify Dr. Howard Claymore
 * Lamia - killed multiple times by Claymore
 * Dr. Howard Claymore - sacrificed himself so that Alabaster could defeat Lamia (his soul now occupies a Mistform body)

The Mark of Athena

 * Three Eidolons - the eidolons impersonate Archimedes' robots, but Leo manages to trap them inside the robots' wiring and make them short-circuit.
 * Ephialtes and Otis - killed by Bacchus, with help from Percy and Jason.
 * Arachne - killed by The Argo II's ballistae and fell to Tartarus.

The Lightning Thief

 * The Minotaur - attempted with Riptide, Percy killed it with one of its horns.
 * Medusa - Head was cut off by Percy Jackson.
 * Hydra - Turned to stone by Medusa's head.
 * A Hysterical woman - Turned to stone by Medusa.
 * The Hysterical Woman's husband - Turned to stone by Medusa before the woman (not shown)
 * Gabe Ugliano - Turned to stone when opening the fridge with Medusa's Head in it.