Hour of the Wolf by Dana Marie Bell

Iva and Noah want to enjoy their reclaimed bond, but first they have to kill the most powerful of demons…or die trying.

Not much worries Noah Wulfenbach, one of the most powerful shifters in North America, but questions about Iva Yamauchi’s recovery had made him anxious. He was vigilant in his caring for his mate, sitting beside her tree, talking to it—to her. Now that she’s back, Noah’s relief is matched only by his desire to drag the feisty dryad to his house to complete their mating bond.
Iva is ready to make up for lost time, especially with the delicious Alpha Prime of the werewolves, her fated mate. She and Noah had only just recognized their connection when she was injured and broken, forced to retreat to her tree. She’s curious and excited to find out just how firmly she’s tied to Mr. Tall, Dark and Growly.
Before Iva and Noah can explore the depth of their connection, supernatural hunters threaten the population of Maggie’s Grove. Together with the other town rulers, the fated pair must slay the demon-possessed leader of the hunters. Iva and Noah just found each other; they’re not ready to say goodbye…

but they may not have a choice.