"Wizards and their mysticism." Susan made a quick gesture with one hand, as if throwing something small away. "Everybody in Ankh Morpork knows where the University is, and the Tower can be seen for miles, but the name stuck. It was one of them taught that bird to talk. I occasionally have considered going back in Time to give the man a stern talking to. It probably wouldn't do any good, though, considering the arrogance of the average wizard."
She paused to reflect for a moment, taking another sip of her drink. "You are unable to transit the different Universes? I suppose that would make sense, given your tie to the primary Creator of yours. I think I should find it rather limiting. Do you also not have your own Realm then? No place to go to get away from things for a while? I suspected that might be the case when I saw the name of this bar. Poetic enough, the place between and all that. Not that I am much of a fan of poetry."