She swore under her breath over and over again, unsure what to do

The lady they talked to before quickly ushers them into one of the nearby bathrooms, in the hope 571 won't look there.

Fira stayed as quiet as possible, going very rigid

For a while everything is silent.

She doesn't dare move, hardly breathing. The woman would most likely come back to tell them it was all clear, right?

Then the door gets loudly knocked on. "Hurry up in there!"

She only goes more rigid, not sure if this was supposed to be a trick or something

There's silence for a few more minutes.

She finally decides to peek out

There's several 571 officers in the building. At least ten.