A quest, a literary thriller and a love story, What We Can Know spans the past, present and future to ask profound questions about who we are and where we are going.

2014: A great poem is read aloud and never heard again. For generations, people speculate about its message, but no copy has yet been found.

2119: The lowlands of the UK have been submerged by rising seas. Those who survive are haunted by the richness of the world that has been lost.

Tom Metcalfe, a scholar at the University of the South Downs, part of Britain's remaining archipelagos, pores over the archives of the early twenty-first century, captivated by the freedoms and possibilities of human life at its zenith.

When he stumbles across a clue that may lead to the great lost poem, revelations of entangled love and a brutal crime emerge, destroying his assumptions about a story he thought he knew intimately.

What We Can Know is a masterpiece that reclaims the present from our sense of looming catastrophe, and imagines a future world where all is not quite lost.

'One of the finest writers alive' Sunday Times
'A true master' Daily Telegraph
'McEwan is one of the most accomplished craftsmen of plot and prose' New York Times