David Mitchell's strange new tale and the art show that inspired it

My Eye on You, written for the duo Kai and Sunny, stars a character from The Bone Clocks with the ability to alter time. Here, Mitchell recalls being sparked into action by seeing drawing like ‘a picture of God’s retina’A shadowy presence stalks London’s Stolen Space Gallery, hurrying from the edge of viewers’ vision, slipping across mirrors. But the blurred figure flitting among the Technicolor whirls of duo Kai and Sunny’s latest exhibition, Whirlwind of Tim