Equator: Brian Aldiss

An invasion of Earth was imminent - and only one man could stop it. A team of saboteurs had infiltrated the enemy territories, attempting to bring back to Earth a warning of the impending attack. Death had reduced their number to two and fear of treachery had divided them. Finally, only one man could save Earth. The secret of the hordes of death must be brought back. But he could trust no-one - not even himself. Cover art by Bruce Pennington.