"The Gibraltar mission looks like a wasted trip. But when her informant is found floating face-down in Rosia Bay, the agent knows she is onto something … and realizes that she might be next. When Rosie Winterbourne is offered training for the secretive Firegate agency, she does what she always does: screws up her courage and accepts the challenge. But little does anyone realize how dangerous the new agent’s ‘sandbox’ mission will prove. Unearthing an audacious terrorist plot, Rosie will need all her skills and intelligence to stay alive."