The train comes to a stop back in London. Hermione picks up the empty picnic basket, placing it safely into the pouch for later. And she cleans up the mess.

She gives Jim his ice cream cone, and take our hers, so they have something to eat on the way to the entrance to Diagon Alley. The ice cream is still in good condition, no signs of it melting.

"I believe you have a lot of potential Jim."