All his life, Kalin struggled to protect his brothers from his mother's ploys, never allowing himself to love anyone but his siblings. That changes when he meets Cade. In submitting to Cade, he finds a freedom he's never experienced and when they escape Alaria, he finally hopes the hell they've been through is over. But when secrets from Gabriel's past are revealed, their new life comes crumbling down like a castle of cards.

When they find out Gabriel is human, the Xeetahn kings turn against their own family, imprisoning Lucien and Cade and sending Gabriel away in a mysterious vortex. Upon losing his mate and son, Lucien surrenders to his demon side and goes over the Edge.

It is up to Cade and Kalin to deal with the aftermath. Can they find Gabi before Lucien loses his mind altogether? Will their love survive the struggle to save their families?