Why does Gitl wake up Hannah in the middle of the night? Explain

Here's what I found hope it helps:

Gitl informs Hannah that there is a plan. She does not go into detail, nor does she tell Hannah what the plan is or when it will take place. Hannah only knows that she will be involved somehow. Gitl refuses to tell Hannah out of concern that Hannah may inadvertently discuss it and be overheard. Hannah asks Gitl again and again over the next days, but Gitl tells her nothing.

The days pass in this fashion. Each evening the smoke rises from the stacks. The prisoners are glad that as long as someone else is being "processed," they themselves will not be.

One night Hannah is awoken by Gitl, who tells her that it is time. She descends from her bunk. Gitl hands her a pair of shoes in the dark. The door to the barracks is unlocked. Gitl tells Hannah that some guards can be bribed. Hannah asks if Fayge is coming too. Gitl tells her that Fayge has decided to stay, preferring the dark wolf she knows to the dark one she does not.

the answer is b-$11,337.