They've finally said those three little words, and Charlie has almost persuaded his mum to let him sleep over at Nick's house ... But with Nick going off to university next year, is everything about to change? By Alice Oseman, winner of the YA Book Prize, Heartstopper encompasses all the small moments of Nick and Charlie's lives that together make up something larger, which speaks to all of us. 'The queer graphic novel we wished we had at high school,' Gay Times.