View source for Aged Chamber O–?

{{FA Infobox
|image=Aged_Chamber_O-_RTDX.png 
|image_size=300
|type=Psychic
|name=Aged Chamber O-?
|jname={{tt|古|いにしえ}}の{{tt|石室|せきしつ}}Ｏ？
|jtrans=Ancient Chamber O?
|desc=One of two chambers in an ancient ruin. One is named "A-N" and the other "O-?". Odd...
|capacity=14
|price=5,500
}}

'''Aged Chamber O-?''' (Japanese: '''{{tt|古|いにしえ}}の{{tt|石室|せきしつ}}Ｏ？''' ''Ancient Chamber O?''), formatted as '''Aged Chamber O?''' in Red and Blue Rescue Team, is a Friend Area in [[Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team]] and a [[rescue team camp]] in [[Pokémon Mystery Dungeon: Rescue Team DX]] in the Relics area. In Red Rescue Team and Blue Rescue Team, it has a capacity of 14 Pokémon. The "O-?" in the name refers to the Pokémon that reside here: {{p|Unown}} from O to ?.

It can be purchased from the {{DL|Pokémon Square|Wigglytuff Club}} for 5,500 [[Poké]] after defeating {{DL|List of Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team characters|Rayquaza}}. Upon buying it and [[Aged Chamber A–N|Aged Chamber AN]], the {{player}} gains access to the [[Unown Relic]] dungeon.