Eleanor E. Norton

The depletion of the earth's ozone layer causes animals above the altitude of 5000 feet to run amok, which is very unfortunate for a group of hikers who get dropped off up there by helicopter just before the quarantine is announced.

A Harvard University student finds a strange letter that seems to be signed by George Washington. When trying to contact an expert (Prof. Chandler) to authenticate it, he is murdered but the letter disappears. Then Chandler, who does not know anything about the case, gets chased by the mafia and haunted by a TV reporter (Polly Bishop).