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Trapped in the Museum of Unnatural History (Zack Files, Bk 25)
Trapped in the Museum of Unnatural History - Zack Files, Bk 25 Author:Dan Greenburg It seems like a regular field trip to a natural history museum -- until Zack gets locked inside for the night and discovers what really goes on in those display cases when no one is watching. A tribe of curious Neanderthals, rampaging woolly mammoths, prehistoric food shortages . . . it’s just another wild adventure for Zack!