Hidden Treasure Hunts is hosting free events in Houston and Beaumont on Thanksgiving Day.
[Ads /]
To enter, you have to solve a riddle online, and if it's correct, you get the next clue.
"The riddles will get harder and harder and at the end, you'll have a master riddle that you're going to have to put it all together to come up with the answer to win the money," Sanford told ABC13 this summer.
The business expanded into Houston in August.
[Ads /]
READ MORE: Treasure hunt with prize up to $100k in Houston underway: Here's how you can win
Win $100k in treasure hunt game using Houston box murals
It is free to play, but to win the money, players must sign up ahead of time at the Hidden Treasure Hunts website.
Follow Steven Romo on Facebook and Twitter.