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The Time Tunnel
While exploring in Rumania. Donny and Bobby discover a ruined laboratory with a mysterious tunnel. Entering into it their bodies shrink. They emerge into a beautiful countryside and meet Hansel, whose father invented the time tunnel. Hansel shows the boys how to encase themselves in time light spheres. The trio journeys through time, visiting the middle ages, ancient Greece and Egypt and forward into a surprising future. Along the way the boys gain valuable lessons about history, human behavior and themselves.
