A saker falcon named Purple was convinced that there was a neater alternative to Andrew Wiles’ proof of Fermat’s Last Theorem. In the off-season of her falconry league, she spent every waking moment with her beak in books about mathematical modularity lifting and fictional Swedish crime. That was until she met Harold, a Scottish pine marten who was exceptionally proud of his semi-retractable claws and his signature grey squirrel and red currant milkshake. Then Purple discovered that however implausible it seemed, there was more to life than seventeenth-century Frenchmen and the smell of feral pigeon on your breath.

Music pairing: Rock Me, Amadeus, by Falco