Mr. Womback’s first clue that something was wrong the next morning was when he spotted two frogs sitting in a puddle in the teachers’ parking lot. They eyed him suspiciously, and he eyed them. His second clue was when he found both the door to his classroom and his storage room unlocked. His final clue was when he saw the aquarium sitting empty, the window above it slightly ajar.

“Morning, Teach,” Kyle Kravetsky said, strolling into the storage room. “Hey, where are all the croakers?”

Mr. Womback gritted his teeth. “Apparently, they somehow escaped through a closed window sometime after I left the classroom – locked! – at 4:00 pm yesterday afternoon. Kyle!?”