Son Of Hades: The Summoning (Reuploaded, but no changes)

All Stefan Hood ever wanted was an ordinary life, even if his parents had abandoned him. When he befriends a new student at his school, his life begins getting out hand. One moment he's a schoolboy living a somewhat normal life, and then he's a demigod, half-human and half-god.

When in his classroom, he is attacked by students who had suddenly turned into white cyclopes, giant one-eyed monsters. He is saved by Elvis, the new transfer student, and leaves school along with another demigod to go to someplace called Camp Half-Blood.