Tobias

"'How well could I see into the future now? Not much. But I know enough. Calian is the anomaly of the gods, the peace treaty, made from their blood. Of course he could survive death, even from a major god. This boy... is a miracle.' -Tobias to himself at the ending of Chapter Eight"Tobias is the son of Hypnos and Mary, a clear-sighted mortal. He used to be a refugee at the Lotus Hotel and Casino, and now lives at Camp Half-Blood.

History
Tobias was the son of Mary and Hypnos, the god of sleep. He was raised by her until he was 4, when she decided to re-marry a man named Harvey. The man was cruel and abused her. Tobias ran away to Las Vegas to escape the wrath of the man.