Spot gives him a flat look.

"In Brooklyn. You know where to find me in Brooklyn."

He knows that's not the most help, Ezra can come to Brooklyn any day and ask for Spot and someone will point him in the right direction, but after he's gone home for the night? No chance. Favour or not, Spot's not about to encourage any newsie to come to the Hearst mansion, even one with whatever the hell powers Ezra's got going for him.