Infiltrate A Shifter Romance

Spirit Shifters go mad, unless we mate four times.Bad enough that fate chose them, the Alpha wolf and the Bad Boy vampire, but I don't have time for these irresistibly sexy shifters when my brother's life hangs in the balance.My mother's murderous boyfriend threatened him, and I will do anything to save him - even infiltrate and sabotage the only academy willing to give me - and my brother - a chance.