He chuckled lowly to her comment before she asked the question.

Sherlock shook his head. "Not that I would trust. You don't go to lengths like this to keep anything useful around. If I had my lab equipment, that might be a different story, but I certainly wouldn't attempt to use anything here without a good deal of testing."

He frowned, eyes catching hers.

"You cannot think of the arenas as real places. They aren't. The ecosystem and environments are designed specifically to impede us. My first arena was an ice field, with giant crevices were 'magic' was suddenly enabled. Then Disneyland. Then the place made entirely of candy. Then here. Disneyland was the only one that could be construed to be a 'real place', though they did their best to make it incredibly dangerous."