John Forbes-Robertson

A space shuttle mission investigating Halley's Comet brings back a malevolent race of space vampires who transform most of London's population into zombies. The only survivor of the expedition and British authorities attempt to capture a mysterious but beautiful alien woman who appears responsible.

International terrorists attempt to kidnap a wealthy couple's child. Their plan comes unstuck when a deadly Black Mamba, sent by mistake instead of a harmless snake, escapes and the terrorists and several hostages are trapped in the boy's London home.

Disgusted with the policies of King Charles I, Oliver Cromwell plans to take his family to the New World. But on the eve of their departure, Cromwell is drawn into the tangled web of religion and politics that will result in the English Civil War.

Professor Van Helsing had been asked to help against the tyranny of skeletal creatures that are responsible for terror and death amongst the peasants in rural China. He is the only person qualified to deal with the cause of these phenomena, for the undead are controlled by the most diabolical force of all.... Count Dracula. But he is not alone- to aid him comes a mystical brotherhood of seven martial arts warriors.