Black Ops

As an MI5 agent, Spider Shepherd is used to going undercover, but when he's asked to assume the identity of the contract killer hired to take out President Vladimir Putin, he knows he'll become a wanted man. And then Spider discovers that his friend Charlotte Button has been running an off-the-books assassination operation, taking vengeance on the men who killed her husband. Spider owes his life to Button - but this discovery will stretch his loyalty to the limit...