Yeah, that could work, connecting the archives to the arbor doors. The carriagehouse playset I remember Fisher Price made had the arbor doors, a blueish roof capping piece with trap door that hinged outwards, and a rear face revolving door. So it could certainly work. BTW: They said on the InFANity special that the carriagehouse staircase leads to a window that's the back window of Elmo's apartment home or something like that. Maybe it's part of 4-5-6 Sesame Street? Who knows... The world certainly never will.