Rivka just wanted to be more than a heavenly Librarian but someone set her up to take the fall and now she's trying to clear her name and reputation.  Sven is an immortal Viking warrior.  He wants revenge on the dastardly Angel who tried to mess with the Forgotten Brotherhood.

I loved learning more about Sven, the new relationship he has with his parents and his work with the Forgotten Brotherhood.  He's all Alpha male but he has a tender heart - you just don't see it often under all that muscle! Rivka had a powerful if boring position in Heaven.  She was the guardian of the library but she wanted to get to know Humans and really help them - not just read about it.  But now she's on the run with both the Brotherhood and Angels after her.  Can she convince Sven of her innocence and gain his help or will he just take his revenge?  

Rivka and Sven may on the surface be opposites, she's the intellectual and he the instinctual warrior but Rivka is no simpering damsel.  She has a power of her own - even if she doesn't think so.  I loved the camaraderie, covered in grumpiness, that the Brotherhood has and the mates are helpful to the newer mates - assisting them with fitting in and learning how to manage these warriors!  

Intense chemistry, engaging personalities, and never a dull moment.  I really love this series and really hope that it continues for a good while yet!