Last night's wave was denser than any before it. By daybreak there were more of them still moving outside than there had been the day before. Go on like this, each of us holding our own door, and whoever breaks first is finished. I mimed it to her through the window: connect the two sides—if something happens, we can still reach each other. She nodded hard.

Last night's wave was denser than any before it. By daybreak there were more of them still moving outside than there had been the day before. Go on like this, each of us holding our own door, and whoever breaks first is finished. I mimed it to him through the window: connect the two sides—if something happens, we can still reach each other. He gave a heavy nod.