The gallery Tommy and I were discussing was something we'd all of us grown up with. Everyone talked about it as though it existed, though in truth none of us knew for sure that it did. I'm sure I was pretty typical in not being able to remember how or when I'd first heard about it. Certainly, it hadn't been from the guardians: they never mentioned the Gallery, and there was an unspoken rule that we should never even raise the subject in their presence. (3.51)