While undercover as visitors from Detroit, they joined a dodgeball game after being recruited by Percy's bully Matt Sloan. During the game they transformed into Laistrygonians and attempted to kill Percy with flaming celestial bronze balls. Skull Eater participated in the fight and was one of the more lethal giants. He would have succeeded in killing Percy had Tyson not interfered with their attack. Being a Cyclops, Tyson was able to block the flaming dodgeballs Skull Eater tossed and was even able to start redirecting their blasts. This resulted in Marrow Sucker's demise. Skull Eater was able to continue fighting until Tyson punched him in the face which presumably is what caused him to disintegrate and go to Tartarus. This makes Skull Eater the second of the three named giants to die in the battle.
|Species:||Centaur | Cyclopes | Dragon | Drakon | Eidolons | Empousa | Fire-Breathing Horse | Giants | Gorgon | Harpy | Hyperborean Giant | Ichthyocentaur | Karpoi | Katobleps | Laistrygonian Giant | Lycanthrope | Merpeople | Nikai | Nymphs | Pegasus | Satyr | Skolopendra | Stymphalian Birds | Telekhine | Blemmyae|
|Friendly Monsters:||Argus | Blackjack | Briares | Chiron | Don | Ella | Festus | Gleeson Hedge | Gray |Grover Underwood | Hippocampus | Mellie | Mrs. O'Leary | Ophiotaurus | Peleus | Scipio | Tyson | Tempest|
|Enemy Monsters:||Agrius and Oreius | Arachne | Basilisk | Charybdis and Scylla | Chimera | Chrysaor | Clazmonian Sow | Colchis Bull | Echidna | Euryale | Geryon | Joe Bob | Kampê | | Nanette | Manticore | Medusa | Minotaur | Nemean Lion | Polyphemus | Sphinx | Stheno | Typhon | Scythian Dracanae|
|Neutral Monsters:||Carnivorous Sheep | Cerberus | Erymanthian Boar | Gray Sisters | Gorgons | Furies | Flesh-Eating Horse | Gryphon | Siren|