Bear Territory by Kyrii Rayne

The time of testing has come for the Lodge, where wealthy bear shifters retreat to live their lives and use their powers in secret. A powerful group of Hunters has found out their location, and are gathering their forces to descend on the Bears.
It couldn’t have happened at a worse time. With Lodge Mother Helga now dead and the power structure of the Lodge in chaos, young owner Jake Matson, his mate Anna, and their friends and loved ones, face their biggest challenge yet. With Jake’s best friend Darrin designated in Helga’s will as her successor, their responsibility is clear— but getting the rest of the Bears to accept the younger bears’ leadership is going to be a challenge.
Meanwhile, it seems that the Lodge has already been infiltrated by a mysterious spy. Is he there to add to their troubles? Or is he a desperately-needed ally in their fight to defend their home? Mystery follows mystery, and there’s little time to unravel them as the Hunters attack. The heroes are prepared to fight back bravely. But none of them are prepared when one of their number is left fighting for his life during the siege….