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This article contains information on a subject that is not considered canon in the Gravity Falls universe.

Sister Mary Hilda Miley is the Spirit of Seriousness who made her appearance during the Cipher Hunt.


Shriners temple, Atlanta, Georgia

At first, she was mentioned by Grunkle Stan in his first phone message[1]:

"...The next clue, it's at Ochre Court. It's, uh, it's like, it's a big old building in Rhode Island. And if you go up the stairs, there's gonna be a bunch of pictures of nuns on the wall. You gotta look behind one of the nun pictures. Sister Mary Hilda Miley. Real, real grouch, that nun. Lift up the picture to find a clue behind the nun, all right? That's the whole thing..."
—Stan Pines

This pointed at Salve Regina University as the location of the next clue.

Salve Regina University, Newport, Rhode Island

The university accidentally disposed of the clue before the Cipher Hunt began,[2] so Alex Hirsch promised to give a replacement clue at July 21, 2016, 12:30 PST, and asked people to stay out of the university in the meantime.

Century City, Los Angeles

The next time she made her appearance was on an audio file on a USB stick, which was used as a clue that was found in Century City, Los Angeles. This time she was heard as the Ghost of Seriousness, who hates everything fun and can only be defeated by "a clever solution," one of which being a vacuum cleaner, as heard when Soos used one on her. A transcript of that audio file can be found here.


She is a very strict nun who takes everything very seriously and hates fun things. Stan described her as a "real grouch. She beats people with a ruler.


Sister Mary has never been seen, but she is described by Stan as "some kind of ghost" who has "a ruler and a ghost hand."


"Mmmmm! It is me, Sister Mary Hilda Miley, and I decree that you shall never find the treasure! Muahahahaha!"
—Sister Mary Hilda Miley[[source]]

"I am the spirit of seriousness! I hate anything fun: carbonated beverages, boys and girls holding hands at school dances, and most of all, I hate treasure hunts! Also, knuckles!"
—Sister Mary Hilda Miley[[source]]


  • Her name is based on a real person named Sister Mary Hilda Miley, who was associated with Salve Regina University.[3]


  1. Alex Hirsch (21 July 2016). Tweet Number 755984590657859584. Twitter. Retrieved on August 1, 2016. “The 3rd clue had a phone number with a mysterious backwards message! Fortunately a GF fan reversed it. #CipherHunt”
  2. Salve Regina (21 July 2016). Tweet Number 756142450872320000. Twitter. Retrieved on August 1, 2016. “Attn #CipherHunt We regret to share that there no clue in Ochre Court nor anywhere else on our campus. Good luck on your hunt. Keep it fun.”
  3. Archive:

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