Branded by Fire (Psy-Changelings, Book 6);

A Psy-Changeling novel from the New York Times bestselling author of Shards of Hope,Shield of Winter, and Heart of Obsidian..."the alpha author of paranormal romance" (Booklist). 

Though DarkRiver sentinel Mercy is feeling the pressure to mate, she savagely resists when Riley Kincaid, a lieutenant from the SnowDancer pack, tries to possess her. The problem is not simply that he pushes her buttons; the problem is that he's a wolf, she's a cat, and they're both used to being on top.

But when a brilliant changeling researcher is kidnapped from DarkRiver territory, Mercy and Riley must work together to track the young man - before his shadowy captors decide he's no longer useful. Along the way, the two dominants may find that submitting to one another uncovers not just a deadly conspiracy, but a passion so raw that it'll leave them both branded by fire...