Halcyon, also known as "Hal", was born with ability to see the future , He is the son of Apollo and an unknown woman, therefore making him a demigod. Apollo warned him to never talk about his predictions because it would anger the gods. But he met a young girl who owned a dagger who was destined to die in accident, but Hal saved her by telling her the future. In return for his help, she gave him the dagger to thank him. By telling her the future, the gods were angry and Apollo cursed him. Hal was forced to wear the skin of the Python, who guarded the Oracle of Delphi as a reminder that he wasn't an oracle. He was stripped of his voice and locked inside his childhood home, a mansion in Richmond, Virginia, where he was guarded by the leucrotae who were linked to his thoughts and could speak for him. They kept him alive as bait for future demigods, who would look for a treasure, as a way for Apollo to remind him that his voice will lead others to their doom. After the demigods were eaten, he would keep their food and other supplies they had traveled with.