"Vashta Nerada," he replied to her question about the infestation. "Shadow piranhas," it was hard not to sound oddly enthralled by the creatures, they're interesting as they are fearsome. "Entire library constructed of books and shelves of their native forest."
He was shifting back and forth on his heels. Martha was still nowhere to be found. "Have you seen Martha about?" Reflexively a hand reached up to scratch his head, his hair reacting predictably by splaying out in a million different directions than before. The lack of a shower was not showing kindly in the Doctor's hair - nor in the creases about his features. He'd have to find that gym.
"It was spectacular," he trailed back around to the library.