The HM ring is located at the exit near the last set of posts it is right in the middle. We say Masre gracey went to give it to his bride but an evil fortune teller (aka madame leota) ripped it from his hand and had such great power that it embedded in the stone.
what it really is: Part pole part screwdriver teh tried to pry a ple out using a screwdriver but the screwdriver got stuck so they just sawed it down. but it is a neat story to tell your kids or vacation party.