For Love of War — Kiernan Kelly

Ares, the Greek god of War, has fallen on hard times. Modern technology has left him a proverbial fish out of water, relegated to finding battle of a sort in rough biker bars. When Hermes shows up with an offer from Zeus, king of the gods, Ares thinks he's finally found a way to regain his past glory. A godling on Earth has come into his powers, and they're strong enough to send a ripple through Olympus. Zeus needs the fledgling god dead. Dion, the godling in question, has no idea of his Olympian roots until he wakes up to find Ares there to kill him. But Dion isn't totally defenseless, and Ares soon discovers he's caught in a web of lies that only the Fates will be able to untangle.