"Yeah, but I can teleport, so we don't have to go flying after it right this second," says the staff. "Just have to wait for it to find—ooh, it's close."

A strange geometric figure appears on the ground under Darren's feet, drawn in moving lines of multicoloured light - two five-pointed stars inscribed in a circle, rotating in opposite directions, with the circle contained in two similar counter-rotating pentagons themselves inscribed in another circle.

And—now they are where the deck of cards is, the magical diagram flaring and fading beneath them.