The start of Tom Sawyer opens with Aunt Polly looking all over the house and yard for Tom. The first word of the book is her shouting, "TOM!" (ch. 1). She looks around the room, checks under a bed with a broom, and even looks outside in the garden. Finally, she hears a slight noise:
There was a slight noise behind her and she turned just in time to seize a small boy by the slack of his roundabout and arrest his flight (ch. 1).
She finds him hidden in a closet with jam all over his hands. Aunt Polly asks him what is all over him, and he lies, saying he doesn't know. She responds,
Well, I know. It’s jam—that’s what it is. Forty times I’ve said if you didn’t let that jam alone I’d skin you. Hand me that switch (ch. 1).
Aunt Polly is upset with Tom for hiding from her and for sneaking into the fruit jam, a sweet snack, when he is not supposed to. She's also upset with him for lying to her. For all of these reasons, she suggests that she is going to punish him.