Grant's partner-in-crime should be arriving any moment. Thomas was as desperate for a big score as Grant, so he agreed to use a Perfect Appearance Mirror to become someone who could get them both there. Grant hears a coded knock on the front door indicating Thomas's arrival and makes his way there.
He's far too short to even attempt a look through the peephole, so he simply unlocks the door. The door swings open and Grant stares in shock at Thomas. "He" was now a preteen girl wearing a bright dress.
"Grant don't stare at me like that," chided Thomas, "You said to go for something no one would ever expect. Who would think a young girl and her baby brother were career criminals?"
The mischievous grin she flashes makes it look like she just described her epic plan to rob the cookie jar. Nevertheless she's right.
"Sowwy Tommy."
"Wow you really got that baby talk down. Good job. You should probably start calling me Tina or Sis now though."
Grant was too embarrassed to try to explain that he wasn't trying to talk like that, "Ok Tina, we ready go mu...muse...place?"
Tina raises an eyebrow at Grant stumbling over the word but nods, "Yeah let's get going."
Grant instinctively takes Tina's hand as the two head out to...