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The Secret Stash: A Library Cache Letterbox Hybrid

Hidden : 6/16/2026
Difficulty:
3 out of 5
Terrain:
1 out of 5

Size: Size:   other (other)

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Geocache Description:


Chantilly's First Library Cache!

 

I don't know about you, but I love library caches, and am so excited to place one! 

 

The given coords are virtual but they are not bogus. You must go to them and answer the question given below into the Certitude to receive your clue to the whereabouts of the geocache.

Question for Certitude: There are three words prominently displayed on the rock at GZ. What 4-letter word can you spell twice without reusing letters from those three words? Input the answer into Certitude.

 

You can validate your puzzle solution with certitude.

 

This is a great cache for kids. So bring them if you can. Also bring your trackables since there is plenty of room.

Please Read Before Looking:

  • Please be respectful when inside, and follow all library rules and etiquette. Do not ask for help from the librarians, as you are supposed to find it yourself, feel free to ask me however if you need a nudge. If they ask you though, you may tell them what you are doing.
  • The cache is not registered in the library catalougue, so do not go searching there (unless you want to check out a book).
  • Please DO NOT take out (They are not SWAG):

    • The piece of paper for non-geocachers who accidentally find this cache
    • The logbook and blue pen for the logbook (duh)
    • The small orange letterbox stamp. That is for letterboxers who will know what to do with it.
  • Please replace everything exactly as found to ensure longevity.

Library Hours:

Monday - 10 A.M to 9 P.M

Tuesday - 10 A.M to 9 P.M

Wednesday - 10 A.M to 9 P.M

Thursday - 10 A.M to 6 P.M

Friday - 10 A.M to 6 P.M

Saturday - 10 A.M to 6 P.M 

Sunday - 10 A.M to 6 P.M 

You can also find their hours here: https://www.fairfaxcounty.gov/library/branches/chantilly-regional

This cache is placed with permission and the librarians know of its existence.

 

Fun Fact: Did you know that geocaching is the main plot point for the 113th book of the Boxcar Children?

Final Parting Advice:

Check out a book while you are there.

Additional Hints (Decrypt)

Jurer jbhyq lbh svaq guvf xrljbeq?

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)

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