Cracks, yes. Daniel would very much not like to deal with cracking or breaking glass or anything. He...would not like that. He does not like the glass. He stopped liking glass years ago. He doesn't trust it. It's flimsy, hardly a good foundation for an underwater structure.

He does not like the glass.

Andrew's arch verbalization of his fear does nothing to alleviate the jangling nerves. Tight-jawed, wordless, he scrambles back down the hatch as quickly as he can and offers a hand to Andrew to help him down.