His Sign 2: The Ezra Solution. His Sign, #2

Drew Goddard and Nomie Harker land headfirst in the middle of a supernatural war over an ancient evil. Nomie gets a sign of her own, but they aren't sure it can stop the self-destruction of an ancient race. The Sethites are locked in civil war with their far-gone dragon kin. Ordinaries are the bait to trap and remove the only obstacle to the ultimate act of rebellion. Hope may lie in the wedding of a most unlikely couple.
A traitor tries to destroy the peace but they might be wrong about the real enemy. Drew is about to relive the history of a certain Bible king, coming face to face with a giant race out for blood.