In this companion to Miss Nelson Is Missing--the classic, hilarious story of a misbehaving class--the scheming kids in Room 207 are in for a big surprise from the scariest substitute around: Miss Viola Swamp. When their teacher has to go away for a week, Miss Nelson's kids are excited to "really act up." But when the principal ends up being the most boring substitute teacher ever, they hatch a plan to turn their week from...