Luminous and full of longing, Constance is a novel of teenage fragility, male blindness and everyday complicity. In the summer of 2006, a chance encounter on the London Underground finds eighteen-year-old Ali tagging along with a school friend and a mysterious girl to a club. The girl is Cece, and she seems to be everything Ali is not. For one night he is transfixed and transformed into someone who might belong. All he knows is he will remember it forever. In 2064, Ali takes his final flight out of the UK to Morocco, in a world upturned by climate collapse. He has a wife and a daughter, reasons to return. Yet Ali is willing to abandon everything to find Cece again, finally to recapture that long summer night when he was young, and to understand how the actions taken - and not taken - have changed all their lives.