Sam Witt's sandwich was a marvel on a plate. The sandwich to end all sandwiches. If life were a movie, there'd have been trumpets and drums playing as Sam paraded his delicious STEAM fair project into class. But not more than two hours after the breathtaking wonder's arrival at school, the king of all sandwiches was missing. Was it taken hostage by a jealous rival? Swallowed by a runaway tiger? Beamed up to space by alien invaders? Polished off by a rogue substitute teacher whose eyes were bigger than her poor groaning belly? Or was it something else entirely . . . ? 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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