Vanished (Mason Callahan #1)

When an eleven-year-old is abducted on her way to school, the FBI doesn’t waste a moment, sending agents to scour the area and embedding Special Agent Ava McLane with the distraught family. In the eye of the storm is local detective Mason Callahan, whose life is crumbling to pieces—he’s related to the victim, and his longtime confidential informant has just been murdered.

Both he and Agent McLane hole up in the victim’s family home. Every second counts in a kidnapping case, and the stakes keep rising the longer the girl is missing. As Ava and Mason struggle to hold the family together in their darkest hour, the two investigators find themselves drawn to each other. Rated '3/5 - Open door' for steam/spice/heat level.