Damned in Dallas - Peter Glenn

I thought I'd never have to see Val again. I was so very wrong.
Val's sudden appearance in my life had rocked my world, but it had all been a ruse. I should have punched him in his smug face, but my sister's life was on the line.
Now he's back, insisting we must work together for the good of all. And the life of my sister, of course. The assignment this time? Track down the Mark of Ereshkigal, a piece of the enigmatic Crown of the Underworld.
A trail of gruesome murders leads us to Dallas, where we find more waiting for us than we'd bargained for. Turns out we're not the only ones hunting the Mark. And the other guys? They're even more dangerous than the demons I work for.
With time running short, this quest is about to take a deadly turn. And not just because I have to work with Val again.