Puzzle book released today in the UK offers readers treasure hunt to €750,000 golden casket
![Puzzle book released today in the UK offers readers treasure hunt to €750,000 golden casket](https://i.dailymail.co.uk/1s/2021/04/08/16/41504866-0-image-a-31_1617895813777.jpg)
British artist Michel Becker has released The Golden Treasure of the Entente Cordiale and invited readers to solve a series of puzzles which will lead them to two buried crystals in the UK and France.