Agent 21

Some authors just write about it. Chris Ryan has been there, done it, and lived to tell the tale. Agent 21 is the first in the action-packed adventure series by the real-life SAS hero.When Zak Darke's parents die in an unexplained mass murder he's left alone in the world. That is until he's sought out by a mysterious man: 'I work for a government agency,' the man tells him. 'You don't need to know...