An older version of something mentioned by Bottrell:
A short distance from the Cove a mysterious cave was pointed out to us, called Pendeen-Vau, which is conceived by the rustics to be interminable, for they had penetrated at least fifty yards, and still, found no end. At the entrance of it there appeared some years ago a strange lady with a red rose in her mouth, for what purpose it was not easy to ascertain, for the good people seemed unwilling to allow their imaginations to dwell on the possible horrors of the circumstance. This cave was probably used in remote ages as a place of concealment for property during times of war and invasion.
From A Voyage Round Great Britain undertaken in the summer of 1813’ by Richard Ayton.
I actually read that as 'red nose in her mouth' and couldn't help thinking of clowns.
I need to get some rest I think.
Good find!