Deaths (CHB)

This a list of those who died in the series.

Before the series

 * Maria di Angelo - from a hotel explosion caused by Zeus, which was intended for Nico di Angelo's and Bianca di Angelo's deaths.
 * Laura Jackson - in a plane crash.
 * Jim Jackson - in a plane crash.
 * The Oracle 's host - died over thirty years before The Lightning Thief, and became mummified after Hades cursed her.
 * Ferdinand- a Satyr turned to stone by Medusa and Grover Underwood's uncle.
 * Thalia's Mother - Died in a car crash due to being drunk
 * Ms. Valdez - Killed in a fire in a factory accidently caused by Leo
 * Tom McLean - Died of cancer.

The Lightning Thief

 * Alecto - Stabbed by Percy in The Metropolitan Museum of Art. Later reformed.
 * The Minotaur - Percy killed it with one of its horns.
 * Reformed some time before The Last Olympian, but killed again by Percy.
 * The Furies - killed on the bus by Percy. Later reformed.
 * 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.
 * A 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.
 * Colchis Bulls - Killed by Percy, Tyson, and Clarisse.
 * 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.

The Titan's Curse

 * Nemean Lion - Killed by Percy in 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 with her inside.
 * A Skeleton Warrior - banished to the Underworld by Bianca, presumably sent to the Fields of Punishment
 * Zoe 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
 * Antaeus - stabbed by Percy in his third and final duel.
 * A Dracaenae - Killed in Percy's first duel (out of three).
 * A 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 mamoth) were turned to dust when Pan faded.
 * An Unnamed Satyr - trampled on and presumably killed by a Hellhound (see below) Percy sarted to help him when Juniper's tree started burning.
 * A Hellhound - After killing a Satyr, it targeted Percy and was stabed with Anaklusmos.
 * Kelli- Killed by Annabeth in the Labyrinth.
 * Kampê - Killed by Briares near Zeus's Fist.
 * Lee Fletcher son of Apollo - Brought down 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 (and enemy demigods) and monsters.

The Demigod Files

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

The Last Olympian

 * Charles Beckendorf - Died 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.
 * Leneus - killed in The Battle of Manhattan, reincarnates into a Laurel tree.
 * 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 died.
 * 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 neck after he slashed at Kronos. He was later sucked into a fissure on Olympus.
 * Kronos - Dissolved to dust when Luke Castellan stabbed himself.
 * 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.

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.

The Lost Hero

 * Venti - Dissolved when Jason stabbed them.
 * Sump - Killed by Leo's Machine (reformed almost instanly)
 * Torque - Killed by Leo's Machine (reformed almost instanly)
 * Ma Gasket - Smashed by a Machine (reformed almost instanly)
 * Festus - Exploded
 * Medea - Killed in an Explosion
 * Two golden dragons - Destroyed in an explosion
 * King Midas - killed by a crowed of his victems
 * Lityerses - Turned to gold
 * Earthborn - Killed by Jason, Piper, and Leo
 * One Earthborn - Shot with Thailia's Last arrow
 * Tempest - Destroyed when Hera unleashed her true form
 * Lycaons - Killed by the Hunters of Artemis