Next Up: The Mephisto Covenant by Trinity Faegen

GoodReads Synopsis: Sasha is desperate to find out who murdered her father. When getting the answer means pledging her soul to Eryx, she unlocks a secret that puts her in grave danger—Sasha is Anabo, a daughter of Eve, and Eryx’s biggest threat. 

A son of Hell, immortal, and bound to Earth forever, Jax looks for redemption in the Mephisto Covenant—God’s promise he will find peace in the love of an Anabo. After a thousand years, he’s finally found the girl he’s been searching for: Sasha.

With the threat of Eryx looming, Jax has to keep Sasha safe and win her over. But can he? Will Sasha love him and give up her mortal life?

Sounds right up my alley! I hope I can get some reading done this afternoon!