The Shadow Wolf: Amantes De Los Lobos by KA Stefana

He never expected the reception he received. Jail. False charges. Hate-fueled accusations. Kaj didn't recognize the man standing before him.
Alpha Luka, Kaj's father, has become cruel in his absence, ruling the pack with an iron fist. The Alpha was hiding a secret that could destroy the pack forever, and he's driven to madness as he protects his own interests.
When Kaj is rescued, all hell breaks loose as he uncovers his father's deceit. Can Kaj save the pack and his fated mate before it's too late?

The Shadow Wolf is part of the Amantes de los Lobos series.