It's a fascinating thought, and Kell can't help thinking of how it must have been before the doors between all the worlds were sealed, the magical and the magicless living together in the same space. It makes him sad for Londons Grey and White all over again, but humanity had done well enough without magic in Grey. In many ways, they were far more innovative than Red London who could simply magic anything they wished.

"I am glad you can coexist," he says honestly. "I think it must be better that way." Kell turns his head, studying Sirius for a moment before deciding, "When my strength is recovered, I will show you whatever you wish. But," adds Kell, daring a smile, "You must do the same."