Twelve Seconds to Live/ Strike from the Sea: Two Bestsellers in One Volume

The mine is an impartial, and lethal challenge to any volunteer in the Special Countermeasures of the Royal Navy.
They are brave, lonely something to prove or nothing left to lose.Lieutenant- Commander David Masters, haunted by a split second glimpse of the mine that destroyed his first and only command, H.M. Submarine Tornado, now defuse "the beast"on land and teaches the same deadly science to others who too often die in the attempt....

Cruising somewhere off Saigon is the world's largest and most dangerous submarine - the French Soufriere.A rich prize for the enemy, the British navy must capture her themselves before she is used against them...