Could Principal Vanderpants be the BOSS-MONSTER?!
In book 12, the S.S.M.P. needs to track down the bossmonster and get their monster notebook back! They’re keeping their eyes open for clues when they see Principal Vanderpants carrying more white buckets of spaghetti through that mysterious locked door on the 13th floor. Why is she acting so strangely? Will Alexander and his friends finally learn Principal Vanderpants’s BIG secret?