Well, I suppose I can assume your mother doesn't know you're here.
4 seconds sound clip from the Halloweentown movie soundboard.
You can hear this line at 00:32:18.134 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, my stars! How did you get here?
- I came to start my training, Grandma.
- Oh, it was you outside the kitchen. I thought I heard someone listening.
- Well, I suppose I can assume your mother doesn't know you're here.
- I dare say that she's going to be very upset when she finds you're gone.
- No, no, dear. I'm afraid we haven't worked out long-distance calling between worlds yet.
- No, I'll have to take you home myself.
[...]