"We're not going to." He was fighting to stay calm himself, they needed a plan and fast, he hated having to make something up as they went along, "Do you have any idea what might have triggered it?" He said, loud enough to be heard over the next wave now pouring down the stairs.
There had to be an 'off' switch somewhere. He was already counting off seconds, timing to see if the second wave lasted as long as the first had, because if they could time it right, they'd be fine. In theory.