Dark Fate by Kat Silver

“And if I am a monster? Will you want me then?”
Ten days after the battle at Blackriver, Michael struggles with new forbidden desires, with his rampant Flame, and a deepening relationship with the taciturn werewolf, Commander Gabriel Flanagan.
Feeling responsible for their loss, Michael longs to rescue the students stolen by the manipulative vampire prince, Alexei Vasiliev. But the High Council refuses to free Michael from his chains. They fear the Whisperer — the half-breed who decimated an entire company of soldiers and came back from the dead. Yet, Michael still yearns for a future among the Guardians. For a place beside his Finnish, silver-eyed giant. For a home within the crazy supernatural world he’s now bound to.
But does Michael still have a future? He’s a descendent of the Warlock — from a bloodline that produces only monsters. If discovered, not even his protective lover can save him from certain execution. He may not want to.