Tiger's Daughter. Shifters Unbound, #14

The mate bond has never been this strong ... Connor Morrissey hits his Transition-hard-and Shiftertown braces for chaos. His transformation into a fully adult Shifter comes early and is lightning fast, heightened by Connor's very special heritage. Connor spirals out of control, ready to fight for his place in the hierarchy, and his instincts tell him his place is very high. Only the touch of Tiger-girl cuts across Connor's pain ... She's there for him, beautiful, powerful, but a fish out of water, struggling to makes sense of the real world.
As Tiger's daughter, she's more than an ordinary Shifter, inheriting Tiger's strength and intelligence in addition to the enhancements the Shifter Bureau black ops team made to her in secret. Then Connor is captured by those who will use him to enhance their own power. Tiger-girl knows the mate bond is forming between them-losing Connor will tear her apart. But can she risk being found by those who want to turn Tiger-girl into the most deadly Shifter of all time? Now Tiger-girl must choose between her safety or exposing her whereabouts to free him ...