The Gray Matter Sodality

A monthly, story-driven puzzle subscription.

SAVE $5 off your order with promo code CRATEJOY.
Plans as low as $15.00 / month
Product Overview
  • We go to the post office on the 3rd of every month. Please order by the 2nd to get into current batch. You always start with "Mailing No. 1" no matter when you subscribe, so don't worry about ordering too late.
  • Only ships within United States
  • Subscriptions automatically renew. Cancel anytime
Help recover Einstein's stolen brain.
After Albert Einstein died, his brain was dissected and stolen. Join The Gray Matter Sodality to help recover and reassemble those stolen brain fragments. A unique subscription where every month you'll receive a multi-layered puzzle that contributes to the story of GMS and its unusual mission. Go month-to-month or buy multiple at once to SAVE.
  • Members receive a small piece of mail once a month consisting of a puzzle that contributes to the overall story of GMS. The puzzle each month is self-contained and has all the necessary pieces to complete. An occasional email may supplement those mailings.
  • Unique puzzles
  • An unusual and thrilling story
  • Challenging but not impossible puzzles

Sneak Peek

Mailing No. 11

A sneak peek at Mailing No. 11 where The Gray Matter Sodality raids a hobby shop whose nefarious owner is illicitly selling a piece of Einstein's stolen brain like a common collectible. Each item included in the mailing contributes to the multi-layered puzzle for that month. Subscribe today to start with Mailing No. 1 and see the whole story unfold.

Order by October 3rd to get this box!



Q: How many months would it take to finish the whole storyline?Asked by Chewbakattack, September 2019

The Gray Matter Sodality answered...September 2019

"Season 1" is completed in 12 mailings. At the time of this posting, we're
working on Season 2!



Q: Do you need the Internet to solve the mysteries?Asked by Zayani M., June 2019

The Gray Matter Sodality answered...June 2019

Some internet access is needed, yes. For example, a handful of puzzles need
simple access to the internet for things like reading certain webpages,
watching a YouTube video, etc. Also, every puzzle works toward revealing
the URL of a webpage dedicated to that puzzle. That dedicated webpage lets
you know you've officially solved that month's puzzle and gives more of the

Plus, the help/hint system lives on our website. Hope that helps! Feel free
to email us at with any questions or concerns.


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