The Cavern Chapel.
Reading edition
Waldron, in his "Description of the Isle of Man" (1731), speaking of a crypt or subterranean chapel near Peel Castle, says: "Within are thirteen pillars, on which the whole chapel is supported. They have a superstition that whatsoever stranger goes to see this cavern out of curiosity, and omits to count the pillars, shall do something to occasion his being confined there."