not pleased with their failure and had Lityerses behead them with his sword. Vercorix - A Germani that works for Nero in The Tower of Nero. After several failed attempt to find the correct remote control for Nero's bombs, he is accidentally shot in the groin by Apollo and disintegrates, causing Apollo to apologize for his bad shot. Geryon – Geryon is described as having a normal head, a face weathered and brown from years in the sun, slick black hair, a pencil-thin moustache, two beefy legs wearing a large pair of Levis and 3 chests wearing a different colored shirt: green, yellow and red. In The Battle of the Labyrinth, he is the owner of Triple G Ranch with Orthrus guarding the ranch. He gave Percy an apparently impossible task; cleaning out the stables of carnivorous horses, one of the Labors of Hercules. Percy managed to complete the task, but Geryon went back on his deal to let Percy's friends free and the two fought. Percy found Geryon a strong opponent, as Geryon's three hearts made him almost impossible to defeat. Percy defeated Geryon with a well-placed arrow that went through Geryon's side hitting all three hearts at once, killing Geryon. Percy is informed that it will Geryon probably at least a century to reform and Percy suggests that they reshape the ranch for the better so that Geryon will have to work for them when he inevitably returns. Percy initially believes that it was Apollo and Artermis who had helped him to make the shot, but later discovers that it was in fact Hera instead. In The House of Hades, Geryon had cursed Percy to feel the pain that he had when Percy killed him. The arai later told Percy about this. Percy later spotted Geryon amongst the monsters awaiting their turn to go through the Doors of Death. However, the Doors of Death are closed before Geryon can make it back to the mortal world. Ghoul – The Ghouls serve as security guards in the Underworld and make a sound that is similar to bats. They escort the souls of the wicked to the Fields of Punishment as seen in The Lightning Thief when they take a preacher who had been scamming people there. Giant – Humanoid monsters of great stature and strength. Besides the Cyclopes and the Gigantes, there are different species of giants in Greek