In a dying world, how far will a mother go to save her child?

'Not Alone kept me breathless with tension' – Emma Donoghue, bestselling author of Room

'Intensely moving, genuinely gripping' – Charlotte Mendelson, author of The Exhibitionist

Five years ago a toxic storm made the world unrecognizable. Now the air outside could be deadly.

Katie has done everything in her power to create a haven for her little boy, Harry. But now their home is no longer safe.

And so they begin an impossible journey in search of the man Katie was meant to marry. It will take them across a devastated Britain and through terrible danger, but hope and love drive them on . . .

'Hauntingly beautiful' – The Guardian

Sarah K. Jackson's astonishing debut is a story of single parenthood, environmental destruction and hope – against all the odds.