It's April Fools' Day at Harwington Middle School. The eighth graders are on guard for mischief, waiting to see who can top last year's classic white-toothpaste-filled-Oreos prank. But fake cockroaches are one thing. Missing math tests-and the threat of having to retake the test the following day-are something else. Who could have stolen those tests? Was it a slacker trying to force a retest? Or a lovesick boy hoping to protect a crush from a bad grade? How about a jealous teammate trying to frame the competition? Unless it was the prankster of all pranksters, trying to outdo himself in his last year of middle school. . . . Crack open a What Happened? book to investigate a preposterous mystery from four different perspectives. See what the witnesses get right . . . and what they get hilariously wrong. Bet you'll never guess what really happened!

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