An undercover mission beyond the Iron Curtain to recover a defected scientist goes disastrously wrong – a classic early Cold War thriller from the acclaimed master of action and suspense. Now reissued in a new cover style.

Michael Reynolds was going insane … slowly but inevitably insane. And the most terrible part of it was that he knew it. Since the last forced injection, there had been nothing he could do about the relentless onset of this madness. The more he struggled to ignore the symptoms, the more acutely he became aware of them, the deeper into his mind dug those fiendish chemical claws that were tearing his mind apart…

Alistair MacLean, the son of a Scots minister, was brought up in the Scottish Highlands. In 1941 he joined the Royal Navy. After the war he read English at Glasgow University and became a schoolmaster. The two and a half years he spent aboard a wartime cruiser were to give him the background for HMS Ulysses, his remarkably successful first novel, published in 1955. He is now recognized as one of the outstanding popular writers of the 20th century, the author of 29 worldwide bestsellers, many of which have been filmed.