"I... suppose that's true," Barrow muses, his eyes going distant for a moment as he considers it. Electricity. But isn't that magic? To harness it, anyway.

"Ah, don't worry about it, mate, I know where to find you lot. And I still have the thing." He opens his jacket, demonstrating the rectangular imprint tucked into the inside pocket.
"And now you know where to find me."