Gripping and tense story of secret agents, even more secret government facilities, and a deadly virus, from the acclaimed master of action and suspense.

HELL IS ABOUT TO BE UNLEASHED… Five strands of high-voltage wire, 200 yards of bare ground and double barbed wire fences patrolled by armed guards with dogs separated Mordon Research Centre from the outside world.

Yet behind the locked doors of E block, a scientist lies dead, and a new toxin of terrifying power has vanished…