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William Bartlett's sketch of the Dover Demon, used in press coverage at the time
17 year old William Bartlett claimed that while driving on April 21, 1977 he saw a large-eyed creature "with tendril-like fingers" and glowing eyes on top of a broken stone wall on Farm Street in Dover, Massachusetts. 15 year old John Baxter reported seeing a similar creature in heavily wooded area on Miller Hill Road the same evening. Another 15 year old, Abby Brabham, claimed to have seen the creature the following night sitting upright on Springdale Avenue. The teenagers all drew sketches of the alleged creature. Bartlett wrote on his sketch, "I, Bill Bartlett, swear on a stack of Bibles that I saw this creature." When plotted on a map, the locations of the sightings formed a line two miles in length.
Some suggested that the creature may have been a foal or a moose calf. Police told the Associated Press that creatures reported by the teenagers "were probably nothing more than a school vacation hoax."