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Use this space to describe your geocache location, container, and how it's hidden to your reviewer. If you've made changes, tell the reviewer what changes you made. The more they know, the easier it is for them to publish your geocache. This note will not be visible to the public when your geocache is published.

Mystery Cache

The Lost Symbol

A cache by Veli Send Message to Owner Message this owner
Hidden : 2/13/2013
5 out of 5
2 out of 5

Size: Size: small (small)

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Geocache Description:

You are close to Technical University of Sofia but NOT at the exact coordinates of the cache!

To find the box you have to learn more about how Masons hide their secrets and as a true seeker of treasures you should unlock their secrets. I strongly recommend this lecture.

To find the exact coordinates you have to decrypt the following message:

For this purpose first of all you have to obtain the KEY. It can be easily obtained from the university's link shown above. Take the first letters from the first and third words, the second letter from the second word and the fourth letter from the last word. Once the key is obtained you should use it to modify the order of the symbols in the Masonic pig-pen cipher. Then use the trick with Dürer's magic square (as shown in the lecture above) and hopefully you're almost ready ;-) Non exigo!

After decryption you will get two numbers - X and Y. The cache is at N 42° 39.(X + 47) E 023° 21.(Y + 6). Check your coordinates with the checker above!

You can check the final coordinates on:

And one last thing! If you find the treasure, don't forget to keep the secret about its place, even from your own cacher friends. Only a few of the fraternity are worthy of finding The Lost Symbol!

In case the cache is missing I will appreciate if you place a temporary container until I do maintenance. Happy geocaching!

Additional Hints (Decrypt)

1001 110 1011 11
1000 110 1001 101

Decryption Key


(letter above equals below, and vice versa)



50 Logged Visits

Found it 32     Didn't find it 4     Write note 5     Temporarily Disable Listing 1     Enable Listing 2     Publish Listing 1     Owner Maintenance 4     Post Reviewer Note 1     

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**Warning! Spoilers may be included in the descriptions or links.

Current Time:
Last Updated: on 7/19/2017 2:54:37 AM Pacific Daylight Time (9:54 AM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum

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