List of Percy Jackson and the Olympians characters
Phobos: The god of fear. He appears in Percy Jackson and the Stolen Chariot in The Demigod Files. Phobos and his brother Deimos (both sons of Ares) steal Ares's war chariot from Clarisse. Then Clarisse and Percy have to find it. Phobos has the power of showing people their greatest fears. He shows Percy his greatest fear, which is Camp Half-blood catching on fire and burning, when they are fighting in an aquarium in a zoo. The word "Phobia" was named after him.