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.)
Near Mint - $1.60
Lightly Played - $1.40
Played - $1.10
Heavily Played - $1.00
Damaged - $0.80
Near Mint Non-English - $1.60
Lightly Played Non-English - $1.40
Played Non-English - $1.10
Heavily Played Non-English - $1.00
Damaged Non-English - $0.80
Foil Prices
Near Mint Foil - $2.00
Lightly Played Foil - $1.80
Played Foil - $1.40
Heavily Played Foil - $1.20
Damaged Foil - $1.00
Near Mint Foil Non-English - $2.00
Lightly Played Foil Non-English - $1.80
Played Foil Non-English - $1.40
Heavily Played Foil Non-English - $1.20
Damaged Foil Non-English - $1.00