Used paperback in good condition. Cover creased in top right corner, rest of cover and pages showing minimal wear. 183 pages. Published by Hamlyn, 1979. ISBN 0 600 35343 5.

Grenade attack at Munich Airport... three burned to death in Sorbonne riot... hijack hostages murdered in Holland... Europe is seething with extremes of violence.

Industrial-espionage expert Ralph Ledermann is taking a ski holiday in the Italian Alps when he narrowly escapes death by sabotage. As screaming bodies plummet thousands of feet down an icy mountain, he finds himself challenged to discover why.

The answer is Killfactor Five, a new mystery drug with hideous effects. Given to rats in a laboratory, it raises their aggression levels by a factor of 500 per cent - till they literally tear each other to pieces. And now a large consignment is on its way to Britain...destined for human consumption.