To keep his fellow gods safe, Apollo must retrieve Eris from the pits of Tartarus--where he left her, seven hundred years ago.

For seven hundred years, Apollo kept Eris chained in darkness. For seven hundred years, she's never seen sunlight, never known joy, never spoken to another mortal—or god. Until Apollo comes, and with the wave of one imperious hand, frees her.

He needs her help. The gods are fading, and only she can save them. Too bad she has no interest in anything beyond revenge.

Especially against him.