[Cor's satisfied that they got the trapdoor open. And the fact that the pathway beneath is full of water doesn't bother him. They have air for a few hours, and he has flippers to help him swim a little faster than he normally would in the water. As long as they move quick, they'll get the job done.

Provided, of course, they don't run into too much trouble.]

I'll hold it for you, if you'd like. But I think it might be wise if we follow just a small distance behind you two. Now isn't a good time to split up, unless it's vital to completing our task.