"We really are."

And, as apparently a counter to his point, when he reached out to touch a button, it suddenly shot back into the wall, along with half a dozen others. Fewer choices, now. Still, couldn't be that hard, could it?

"I think that's a sign that we haven't got much time." He turned another few buttons and the water took a complicated route before dribbling away.

"That one?" he asked, gesturing to one near Jack's hand.