Fading

When Pirou calls his brother Jag to the Old Tavern Club to help with a pair of lynx shifters, Jag is happy to help. Rescuing and rehabilitating big cats is his job, and it makes him the perfect person to take on the pair that Pirou has rescued from a circus.
Mates Hill and Cather were about to be put down by the circus that owned them as they refused to perform after their Master, tiger shifter Darri, was killed in an accident during his last performance. The pair have been beaten, mistreated, and are near death's door, so it's going to take all of Jag's resources to help these two kitties find themselves again.

Along the way, Jag just might find his heart in peril, too.