When you unlock this door, search your library for a Room card that doesn't have the same name as a Room you control, reveal it, put it into your hand, then shuffle.
(You may card either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
NM-Mint - $2.00
Lightly Played - $1.80
Moderately Played - $1.60
Heavily Played - $1.40
Damaged - $1.00
NM-Mint Non English - $2.00
Lightly Played Non English - $1.80
Moderately Played Non English - $1.60
Heavily Played Non English - $1.40
Damaged Non English - $1.00
Foil Prices
NM-Mint Foil - $3.50
Lightly Played Foil - $3.20
Moderately Played Foil - $2.80
Heavily Played Foil - $2.50
Damaged Foil - $1.80
NM-Mint Foil Non English - $3.50
Lightly Played Foil Non English - $3.20
Moderately Played Foil Non English - $2.80
Heavily Played Foil Non English - $2.50
Damaged Foil Non English - $1.80