The Sergeant blinked again. Three lights were moving towards him through the murk of the blizzard. Even as he looked, the lights changed into three tall, straight figures, clad in silver-armoured suits, advancing across the ice with a slow, deliberate step. Horror-struck, the Sergeant reached for his gun, and a stream of bullets sprayed across the marching figures. But they continued marching...

The Cybermen have arrived. The first invasion of Earth by this invincible, fearless race - and the last thrilling adventure of the first Doctor Who.

Novelization of the Doctor Who TV series; four episode story "The Tenth Planet" (1966), script by Gerry Davis and Kit Pedler.