Wormwood Summer by Kai Butler

Parker Ferro owes the fae his life. They’ve come to collect.

When the Summer Queen summons Parker to her court, the private investigator knows there’s trouble brewing. Trapped into compliance by his past debt to the fae monarch, he’s tasked with locating a missing girl in San Amaro. Now he has to find the girl or give up his life.
Things only get more complicated when a very familiar cop asks Parker for his help on a case involving murdered magic users. With the victims completely drained of their magic, the San Amaro Police Department needs Parker’s special skill set to track down a killer. Navigating through San Amaro’s paranormal underbelly while dealing with his own past and this new case is the last thing Parker wants or needs.
Now Parker’s stuck trying to locate a missing girl, stop a paranormal war, find a killer, and resist Detective Nicholas King’s many charms. Here’s hoping he doesn’t die trying.