Sins of the Soul by Eve Silver

Alastor Krayl's world shattered when he learned that his father was the Underworld god of chaos and evil. All that saved him from self-destruction were his newfound brothers and the bond they shared as soul reapers. So when one of his brothers is murdered, vengeance becomes Alastor's obsession. And the enigmatic Naphré Kurata, a witness—or is she the killer?—has the answers he seeks.

A reluctant Underworld enforcer, Naphré trusts no one, especially not a seductive soul reaper who makes her burn with lust. Torn between duty and desire, she fights to keep her secrets safe from Alastor, even as she longs to surrender. (courtesy of Amazon)

Check out the Review of Book 1 - Sins of the Heart.  There is an in between - Sin's Daughter - This is Book 2 in the Otherkin series - Sins of the Soul.  

Eve Silver picks up exactly where book 1 ended, love that in a series.  We had our token resolution of part of the mystery that this book continues to attempt to solve, the death of a brother.  Each time we could potentially get closer to a clue, Silver keeps the suspense rolling with a twist. 

Alastor's instant energy with Naphre is rewarding.  The banter between them only fuels the desire and the resistance to act upon it.  Loved reading their conversations and was thankful the book was full of the two of them together. Definitely picture Alastor walking right through the door and being able to hang out.  

A few more details of the mystery we touched upon, not as much as expected, although this book definitely kept me enthralled with no slow spots.  I'm not hanging over the cliff on the ending, but anxious to read book 3, Sins of the Flesh to see who our killer is and read about our last brother, Mal.  So far, brother 1 and 2 (Dae and Al) I just can't get enough of.  They are next door demons that you have to have on your friends list.   

4 Slices