There are infinitely more spirits than their own numbers, it's true and he knows it. It's a war of attrition that they're guaranteed to lose if the others don't awaken, and even then they probably can't hold off the spirits forever if their attacks don't let up. That's what a reset is, after all.

So the real answer of course is that if that looks to be the situation, he'll go through Will's things, find his tablet, and see if anyone awake is capable of breaking into it and working out whatever he knows that kept him alive to meet their current group. But he's not prepared to even suggest that just yet.

"We need to decide when the cutoff is," he says, not quite answering the question directly. "I mean, how long do we wait for them to wake up before we take who's left alive and try something else?"