Tower of Time

The Ghost of Direwood

Percy Jackson and the Lightning Thief (Book 1)

Unicorn Rescue

Percy Jackson and the Sea of Monsters (Book 2)

Sleep Writer: A Sci-Fi Adventure

Percy Jackson and the Titan's Curse (Book 3)

Sinister Roots

Percy Jackson and the Last Olympian (Book 5)

Gas Mask Kid

The House of Hades (Heroes of Olympus Book 4)

The Blood of Olympus (Heroes of Olympus Book 5)

Banshee

Percy Jackson and the Battle of the Labyrinth (Book 4)

Storm Witch

The Mark of Athena (Heroes of Olympus Book 3)

Dream Phase

The Son of Neptune (Heroes of Olympus Book 2)

Aliens Undead