This is what happened on Tuesday, March 7th, 1995 in stories (or scenes) that can be dated.
These are flashbacks.
Clubhouse of F. O. E. in the Tunnels between Dunn Hall and Whitman CottageEdit
Headmistress’ Office, Shuster HallEdit
Tywyswyr calms Mrs. Carson down over her grief over losing Shelly. We learn some of how he has manipulated Mrs. Carson into her current position as Whateley Academy's Headmistress. Then they make plans for an Arena battle.