"Can't see much through the fog," said Heiji, covering his mouth with his arm. He was pretty sure he recognized that smell, and he sure as hell didn't trust a mysterious pool of water (????), who knew what eight-legged evil dwelt within those depths...

"We're stopped in the middle of a pool. Can't tell what it's filled with -- lemme check if it's reactive."

Heiji took out a sad-looking roll of bandage and rolled it out so the very end dangled into the water. Just in case it was going to burst into flames or corrode and blacken horribly. If it didn't react, he'd use it to gauge the depth of the liquid (?) that filled the pool.