Crossfire

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.
A DANGEROUS REUNION 

After he couldn't save her brother, army first sergeant Josh Walker isn't about to let anything happen to Andrea Donovan. Josh may have saved her from one attack, but drug smugglers are desperate to get information about one of Andrea's patients—a patient who's disappeared without a trace. Despite the danger, the beautiful counselor refuses to hand over confidential files. Now Josh and Andrea have no choice but to battle on for their lives—and their love—or they'll be the latest casualty to get caught in the crossfire.