Kate looks back at Hermione at the sound of Danny's voice, almost as if she expects an answer. Until this point, Danny's been with her during her lessons, walking her through it, there to answer her questions if she has any, but suddenly he's the bad guy. She's on her own.

"I..." But she isn't sure what she's supposed to do and she realizes suddenly that she's forgotten to announce all the rooms clear when she finishes with them. It's too late to go back and do that now, though, so she just tries to remember what to do now.

"I tell you to freeze," she says finally, then raises her water gun and gestures for Hermione to follow her carefully as she edges along the wall toward another room.