What is Xavier MarX and The Missing Masterpieces Armchair Treasure Hunt?
A new armchair treasure hunt called Xavier Marx and the Missing Masterpieces has been released on Amazon. Clues are hidden within the children’s story and images created by Sean Cronin, Hilary Genga, and Sara Martin. If a reader finds and solves those clues, and then discovers the proxy item hidden somewhere in the US, they can claim the $10,000 cash prize.
The treasure hunt benefits the International Child Art Foundation and features artwork from children around the world.
Enjoy the story, join the adventure, and search for treasure! Who will be the one to claim the $10,000?
Where are the Clues to find the Treasure of the book of Xavier MarX?

Six Questions with Sean Cronin: Co-Creator of Xavier MarX Treasure Hunt
Clip from the Six Questions:
” All the clues needed to solve the treasure hunt are in the book. In addition we have released bonus clues which are visible on our Instagram. To date we have three bonus clues – from Jason Alexander (George from Seinfeld), Clancy Brown (Mr. Krabs from Spongebob), and Daymond John (Shark Tank). These will help you with the hunt but you could solve the hunt without them.”
More Discussions on the MW Treasure Hunt Forum
Quick Recap on Xavier Marx Treasure Hunt

Xavier MarX and the Missing Masterpieces
- Released 10/27/21 Sean Cronin
- Clues within a book: Available on AMAZON ($19)
- A proxy item is hidden somewhere in the contiguous United States
- BOTG
- Treasure is $10,000 cash
- No end date
Xavier MarX Treasure Hunt Update 10/30/25
The Prize has increased to 13,400 and there is a new proxy (image below) – This posted on the XM instagram here
We officially have a new proxy! 48 hours has elapsed and no one has come forward with the first proxy so it is now both missing and worthless. If someone turns up with the old proxy, to quote Willy Wonka, “You get NOTHING!”
Here is a photo of the new proxy. This is what you now need to find in order to claim the $13,400 prize. And yes, it has an ear inside it.
A bit of BOTG clarification:
1. The new proxy is not partially covered by any sand or dirt like the last one was. It’s in the same exact spot, but it’s now obscured by some leaves. We would recommend not overthinking anything regarding sand, dirt, or leaves. That was just what we happened to obscure the treasure with.
2. You may have noticed a 12 in a blue heart in the book. This “17th item” was something you were meant to see BOTG. A blaze of sorts marking the treasure’s hiding spot. It is no longer at the treasure site and can be disregarded.
3. A searcher recently asked for clarification on “you do not need to climb anything” from the rules. This is meant for safety. You do not need to bring a ladder, or jump on a bench, or climb a tree, or scale a building… But in the sense of safely “climbing” natural elements like grass, dirt or rocks, or clearly safe manmade elements like walking up or down stairs or stepping off a sidewalk, sure, that’s possible!
At some point in the future we may give more clues but we are not so sure you guys need them. So “Team No Clues” enjoy a little more time to search, but “Team Clues” don’t worry, we haven’t forgotten about you! The search goes on! Good luck and happy hunting.
XX,
Hilary and Sean
