[Nope, she heard that entirely correctly.]

Well, Dipper made it, with this weird crystaly thing from the forest. But then stupid Gideon got a hold of it and made us tiny and tried to steal the Mystery Shack from Grunkle Stan, but we tickled him into submission and made ourselves big again!

[She beams proudly.]

Mystery Shack saved from his grubby little hands, thanks to the Mystery Twins.