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Best chums Chet Havens and Digby Fordham take on feats of daring and danger in The Trail Boys on the Plains. Set in a remote mining town in the heart of the Rockies, this classic action-adventure tale begins with a tragic accident that brings the community to its knees. The Trail Boys set off to help--and encounter a legendary beast along the way.

Mine accidents.

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Traffic accidents

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On the frigid morning of January 28, 1986, the space shuttle CHALLENGER rumbled off the launchpad at Cape Canaveral, Florida. Brilliant orange flames and clouds of smoke billowed out of the external fuel tank, lifting CHALLENGER high into the crystal-blue sky. The mission had attracted worldwide attention. NASA was sending the first teacher, Christa McAuliffe, into space. Crowds gathered to watch the launch, and millions tuned in on television. But less than two minutes into the mission, CHALLENGER exploded in midair, and the historic day ended in tragedy. Author Henry M. Holden takes an in-depth look at this space shuttle disaster.

Space shuttles --- Accidents --- Challenger (Spacecraft) --- Accidents

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Accidents --- Industrial safety --- Prevention

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Nuclear accidents --- Computer simulation.