Beware of . . . this school?! Henry is taking his new classmate on a whirlwind tour of their school. Mysterious inventions lurk, the cafeteria requires ninja skills, and some teachers may be monsters! Is this fantastical school to be believed? Or is there an even more outrageous surprise in store? Celebrated international author-illustrator team Davide Cali and Benjamin Chaud—the duo behind Junior Library Guild selections I Didn't Do My Homework Because . . . and The Truth About My Unbelievable Summer . . . —are back with yet another rollicking tale about truth, lies, and . . . school!