Branded by Fire (Psy-Changeling #6)

When a brilliant changeling researcher is kidnapped, DarkRiver sentinel Mercy, a cat, and SnowDancer lieutenant Riley, a wolf, 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