The book “On Duty” is written by A.R. Barley. The book “On Duty” is the 1st book in the “Smoke and Bullets” series. The story is about a contemporary M/M romance about Troy Barnes, he is a former marine and firefighter, who gets injured in a suspicious warehouse explosion and is left by his boyfriend. Alex Tate is a young paramedic who is offered a place to stay. This book consists of Romance, Contemporary and Fiction.