In the present, Sacha knows the world's in trouble. Her brother Robert just is trouble.

Their mother and father are having trouble. Meanwhile the world's in meltdown - and the real meltdown hasn't even started yet. In the past, a lovely summer.

A different brother and sister know they're living on borrowed time. This is a story about people on the brink of change. They're family, but they think they're strangers.

So: where does family begin? And what do people who think they've got nothing in common have in common?Summer. 'The first great coronavirus novel - a book to savour, a literary tour de force that captures the nation's psyche exquisitely' Evening Standard 'An astonishing finale to a prescient series . .