Re: The Doctor, Faith, and......
If the Doctor at all noticed how Faith thought he was a nutter, he gave no indication. He almost didn't even seem to be listening to her, still standing precariously at the edge of the ravine. Waving the sonic screwdriver about, he looked at its light like he could discern info from it. Concentration was on his face, which suddenly lit up with a smile at her question.
The Doctor turned to her energetically, stepping away from the edge at least.
"Yes, bottomless pits do exist! I don't suppose you've ever been to Zholatane Fissures National Park? The rifts in the ground go all the way through the planet. If you're at the right spots during the night, you can see stars or the sun on the other side, depending on the time of day it is!"
While expounding, he slipped the sonic device into a pocket inside his jacket. The Doctor waved in the direction of the thick patch of fog further along their path, which like before hovered there almost like something sentient waited for them.