Wolf Bound. 3, #1

A ruthless river city queen and the werewolf who should hate her team up to hold the cracks of their city together after she drowns his hidden den to stop an ancient fear-eating monster. Bound by a fragile, teeth-bared truce instead of forgiveness, Lila Voss and Adrian Hale police the supernatural underbelly- where botched rituals, hungry rivers, and old magic gnaw at the foundations of human and wolf territory alike.
As they dismantle a network of copycat summoners, they uncover a colder architect pulling strings, a man who sees their survival  in Book 1 as proof the city- and their relationship- is strong enough to weaponize on a much larger scale. Caught between an invisible financier of chaos, a city that still doesn't know how close it came to being eaten, and their own history of unforgivable choices, Lila and Adrian must decide how far they're willing to bend the rules- and themselves- before they finally break each other or the world that made them.