"You don't know what you're missing!" He was serious in his enthusiasm, certainly Gambit had picked up on that. It was never clear if the Doctor's pseudonym came from his desire to help or a love of learning, it wouldn't be all the surprising that he enjoyed the idea of numbers and math being fun.
"It's my sonic screwdriver. I was trying to replicate bits of it with the modulator," again his mind went back to the thought of the most likely destroyed tool residing in the library. "I've gotten out of more pickles with my screwdriver than anyone ever has with a gun."
The steps finally came to a halt and the Doctor squinted into the darkness. There was the smell of earth in the tunnels, he was fairly sure at some point parts would be crumbling courtesy of the earthquake. The air tasted stale, like the place had been closed up a while. He didn't like the feel of it. Though, the darkness seemed almost a comfort in an odd way.
His fist few steps and the Doctor winced, looking down at what had just crumpled beneath him. "Is that a slimfast bar wrapper?" His brow quirked.