Calvin and Hobbes are in the G.R.O.S.S treefort. It has been a month since they got back from the Foxtrot universe. No, they're not doing anything that has something to do with G.R.O.S.S.
"So, do you think we'll meet them again." asked Hobbes.
"I dunno, it depends." said Calvin.
"I think we will." said Hobbes.
"Well," said Calvin, "let's go soak Susie with a water balloon."
Calvin and Hobbes started filling up a dozen of water balloons. They snuck to where Susie was.
"Ready?" asked Calvin.
"Ready." said Hobbes.
They started to throw water balloons at Susie. The next thing they knew, they were in Calvin's room. Calvin had screaming lectures from his Mom.
"Wow, she WAS mad." said Hobbes.
"I know." grumbled Calvin.
The two friends saw a note. It said:
"Dear Calvin and Hobbes,
I came here to write this. Since you wondering you will see us again, you could come back ANY time you like. Even holidays! If you're wondering where the purple box is, I put in your closet.
Your friend,
Jason Fox."
Calvin and Hobbes read the note.
"Well," said Calvin, "if that's the case, LET'S GO!"
They got in the purple box, set in the dials, and in a purple flash, they were gone.