In the misc section of :- Trewardreva Fogou
http://www.themodernantiquarian.com/browse.php?site_id=1615

PureJoy entered this :- Craig Weatherhill’s ‘Cornovia: Ancient Sites of Cornwall and Scilly’ (Cornwall Books - 1985, revised 1997 & 2000) calls this ‘Piskey Hall Fogou’ (the OS map calls it 'Pixie's Hall')and gives it a good mention,

Thought it's worth a mention.