Codename Quicksilver #1: In the Zone book by Allan Frewin Jones

Fast-paced action and adventure ensues as Zak Archer finds himself drawn into a world of government secrets, enemy spies, and teen undercover agents in the first installment of a gripping new series When Zak Archer accidentally witnesses a murder he immediately finds himself in the firing line. Now some very dangerous people want him dead and he is on the run. Luckily, running is something Zak is good at. In fact, when he's "in the zone" he can run faster, jump further, and fly higher than should be humanly possible. But will those skills be enough to save him? What exactly is the truth behind his friend's death? And in a world of spies, secrets, and lies—who can he trust? Published By Orion Publishing Company on 2012