JKR.com: Room of Requirement
The most mysterious place on JKR.com. It was opened a few times and reveled some secrets about HBP. Unfortunately it’s closed now.
To visit the Room of Requirement – click on the dark-colored hair tie located near the middle of the desk.
Door Opening Dates (2004):
December 20th – December 25th
October 31st – November 15th
August 16th – August 26th
June 28th – July 7th