Buried Secrets by Vella Day

When Criminal Minds meets Bones
How hard could it be working as an undercover cop at a local occult store? Answer: Deadly.

Dr. Sam Bonita, former military man turned forensic anthropologist, needs answers regarding a headless body—answers he hopes to find in a Tampa, Florida occult store. Once inside, he finds a sexy and intriguing clerk, Jenna Holliday, who Sam believes might hold the key to the identity of the murderer.
Determined to learn what she knows, he asks her out. Sparks fly in more than one way, and the evening ends in a blaze—as in his house is burned down with them inside. And things only get worse from there.

These two are on the hunt for BURIED SECRETS—secrets that will cause the killer to turn his focus on them.