What information does Stacey share when questioned about the hole?

From the text:

At supper Mama told Big Ma of the Jefferson Davis bus being stuck in the ditch. “It’s funny, you know, such a wide ditch in one day. I didn’t even notice the beginning of it this morning—did you, children?”

“No’m,” we chorused.

“You didn’t fall in, did you?”

“We jumped onto the bank when we thought the bus would be coming,” said Stacey truthfully.