

Percy and Grover recognized him in the Underworld. Unnamed preacher - Fell off a cliff during a police chase because he was scamming people.Minotaur - Stabbed with its own horn by Percy.All three Furies were killed on a bus by Percy Jackson, Annabeth Chase, and Grover Underwood, but later reformed again.Furies - Alecto was killed at the Metropolitan Museum by Percy Jackson, but reformed later.Percy Jackson and the Olympians The Lightning Thief Phillip McCaffrey - Killed by Nero so he could take his daughter, Meg, as his own.Various demigod children of Athena who were searching for the Athena Parthenos - Some were killed by: knife or flame by the followers of Mithras, Otis, and Ephialtes, or Arachne's traps.Sammy Valdez - Died of old age at some point after Leo's birth.Michael Varus - Died with his group from Camp Jupiter while on a quest in Alaska.Resurrected by Nico di Angelo using the Doors of Death. Hazel Levesque - Killed when Alcyoneus almost rose by forcing the cavern she was in to collapse on her, suffocating to death from being trapped in oil.Marie Levesque - Killed when Alcyoneus almost rose.Esperanza Valdez - Killed in a fire in her workshop which was caused by Gaea, who later made Leo believe that he himself had caused the fire.Beryl Grace - Died in a car crash caused by her being drunk.Ferdinand Underwood - Died after being turned to stone by Medusa.Oracle's host - Died over thirty years before The Lightning Thief and became mummified after Hades cursed her.Estelle Jackson - Died in a plane crash.Maria di Angelo - Died in a hotel explosion caused by Zeus, which was intended to kill Nico and Bianca di Angelo.


Hazel Levesque, who died in the 1940's, but was brought back from the Underworld by her half-brother Nico di Angelo.

