A lone astronaut.
An impossible mission.
An ally he never imagined.

‘The most enjoyable hard SF I have read in years’ GUARDIAN

‘Weir’s finest work to date. . . This is the one book I read last year that I am certain I can recommend to anyone, no matter who, and know they’ll love it.’ BRANDON SANDERSON

‘If you like a lot of science in your science fiction, Andy Weir is the writer for you. . . This one has everything fans of old school SF (like me) love.’ GEORGE R.R. MARTIN

‘Brilliantly funny and enjoyable. One of the most plausible science fiction books I’ve ever read‘ TIM PEAKE, astronaut