A review by skinnypenguin
The Mayan Secrets by Scott Brick, Clive Cussler, Thomas Perry

3.0

Another Fargo adventure. This time while they go to the aid of people after an earthquake they find a valuable ancient Mayan codex. Others want the codex and will do anything to get it. They work with a professor to decode it before it is stolen. They travel all over the world, first to Guatemala where they run into problems then they go to Spain and find a copy of the ancient codex. They use photos of the copy to find sites that have not been excavated and try to preserve them before their chief rival gets to them. Eventually they go back to a town in Guatemala they had visited before and encounter drug runners helping out the main villain and threatening the town. Sam calls in help and they prevail.
Some interesting info about ancient Mayans. The story can be a bit farfetched as the Fargos have a lot of money and use it to get things done that regular people have no access to. They are dining in fine restaurants in expensive clothes one minute and the next they are in a gun battle in the jungle. The villain of course is also rich and can buy the means to escape and hire thugs to get what she wants. It is still entertaining.