Her Berserker Bear by Matilda Janes

The trickster god Loki unleashed a plague on Odin’s berserkers almost decimating their kind. Berserker bear shifter Baden of the Brother’s Three gives up hope of ever finding his fated mate until he comes across Astrid fighting for her life. She’s the one he’s been waiting a lifetime for.
Wolf shifter Astrid Blom’s life is bleak in the aftermath of Loki’s darkness. Terrorized and abused by those who should cherish her she finds solace where she can. When a sadistic pack mate sets his sights on her she rebuffs his advances and falls prey to his violence. When she’s plucked from danger she’s afraid her savior is too good to be true.
Can Baden convince Astrid he wants her heart and soul? Will Astrid ever learn to trust not every handsome face hides a monster?