This is for all IC that occurs when two characters are not in the same area, IE written messages.
ALWAYS check this first if you are summoned in the IC. If there isn't a message here for you relaying that info, you have to pretend to be as in the dark as your character would.
Some messages do get lost, after all.
This is the place to go for non-official knightly get-togethers. It doesn't have to be in someone's personal room/dorm, but it must be within the Chapter House.