"Good." Nathaniel takes a wallet of tools from his pack and unfolds it. "Now look at this."

He holds up a small tool, like a small pair of scissors, but the ends oddly shaped and two hooks between the two handles.

"This is a clamp. Here, take it and try it. When you close the clamp over the hose, you must fasten the hooks together. That's how you will know it is completely closed. Try it in front of me so you can tell how it will feel when you do it right. And Malcolm--"

He raises his voice.

"Malcolm, if Anders refuses to leave when you're done, fling him over your shoulder and carry him. Do whatever you must."