What confession does grandma make to Joey about the events of the day? Chapter 4

That evening after May Alice is in bed, Joey decides to talk to Grandma. He has a few things on his mind. “You never did expect to get the plane off the ground, did you?” No, she replies. And Grandma, Joey asks “I thought you switched the cards on Mr. Pennypacker’s pie with yours so you could win with his pie.”

“I did,” she says.