Ben visits Granny in the hospital on his own. He notices that the doctor seems to have bad news and that Granny seems upset; however, she assures him that she is healthy. Ben reveals his elaborate plan to steal the Crown Jewels, explaining that Granny will offer the guards some chocolate cake with a sleeping pill in it so they fall asleep. They’ll swim up the River Thames and into the pipes, walk across the courtyard, and use a small explosive to blast through the locks of the Jewel House and access the jewels. 

Granny compliments Ben’s excellent planning and encourages him to pursue his dream of being a plumber. She agrees to do the heist with him on the condition that they return the jewels the following evening.

Granny insists that they will be caught if they keep the jewels and tells Ben that they must return them. He agrees that, like all of Granny’s other thefts, they will do it just for the thrill. Granny tells him that they will do the robbery the following Friday.

When Ben leaves Granny’s hospital room, he sees Mr.