The rules are simple: don't take off your non-contact suit, don't touch another person, and only virtual reality sports are allowed.

Cal knows this, he knows its for his own safety, but beyond the city walls, he takes a chance. Accompanied by a few trusted friends, Cal plays football - real football - with real contact. Until they're found out.

A futuristic drama from legendary author and UK Children's Laureate, Malorie Blackman.