Out of the Silent Planet (Space Trilogy #1)

In the first novel of C.S. Lewis's classic science fiction trilogy, Dr Ransom, a Cambridge academic, is abducted and taken on a spaceship to the red planet of Malacandra, which he knows as Mars. His captors are plotting to plunder the planet's treasures and plan to offer Ransom as a sacrifice to the creatures who live there. Ransom discovers he has come from the 'silent planet' – Earth – whose tragic story is known throughout the universe...

Perelandra (Space Trilogy #2)

The second novel in Lewis's science fiction trilogy tells of Dr Ransom's voyage to the planet of Perelandra (Venus). Dr Ransom is sent by the Elida to Perelandra (Venus) to battle against evil incarnate and preserve a second Eden from the evil forces present in the possessed body of his enemy, Weston. Through these works, Lewis explores issues of good and evil, and his remarkable and vividly imaginative descriptions of other worlds cements his place as a first-class author of science fiction adventure.

That Hideous Strength (Space Trilogy #3)

The third novel in the science-fiction trilogy by C.S. Lewis. This final story is set on Earth, and tells of a terrifying conspiracy against humanity. The story surrounds Mark and Jane Studdock, a newly married couple. Mark is a Sociologist who is enticed to join an organisation called N.I.C.E. which aims to control all human life. His wife, meanwhile, has bizarre prophetic dreams about a decapitated scientist, Alcasan. As Mark is drawn inextricably into the sinister organisation, he discovers the truth of his wife's dreams when he meets the literal head of Alcasan which is being kept alive by infusions of blood. Jane seeks help concerning her dreams at a community called St Anne's, where she meets their leader -- Dr Ransom (the main character of the previous two titles in the trilogy). The story ends in a final spectacular scene at the N.I.C.E. headquarters where Merlin appears to confront the powers of Hell.