Some believed that she was a "fairy baby" or that she had turned her husband into the Beast of Blackmoor because he had discovered too much about the Penvellyn family secret. The Beast of Blackmoor was a humanoid wolf-like creature with glowing red eyes that was seen prowling the moors as early as 1557.
Eventually, Elinor was burned at the stake for being a witch in 1650. It was rumored that Cromwell arranged the conviction. The Penvellyn family fled to France for half a century after the tragedy, and the sightings of the beast skyrocketed. Its last reported sighting was in 1990.When the family came back, a puzzle was made in which Elinor's name had to be entered in runes in order to gain further access to one of the secret passageways. It was accompanied with this inscription:
Only the blameless shall pass here. All others shall transform into beasts. Tooth and nail shall grow long, and hair shall turn coarse, til their aspect be as loathsome as their cold hearts. Prove thy worthiness and memorialize here the innocent one so wrongly condemned for saving lives. Else consider thyself right and truly cursed.
In 2004, Jane Penvellyn made Linda Penvellyn think she was turning into the Beast of Blackmoor by writing the curse down and putting it in her room, and by dressing up as Elinor's ghost in a black cloak. She also put glowing red goggles on and pretended to be the Beast.