If I could go to a place in my novel, Gregor and the Curse of the Warmbloods, I would choose Regalia, a big city in Underland.  I would choose Vikus the bat as my tour guide since he knows where everything is and he lives there.  Regalia is safe from rats, and I would like to see the buildings and the humans.  I’d visit the arena in Regalia hoping to see and hear bats flying and the humans chanting for the games they play.  I would feel safe with Vikus since he is kind and loyal.  I’d also be amazed due to the fact that the humans look really pale there and to see that there is a real place underground!