On the Trail of the Golden Owl

On The Trail Of The Golden Owl (French: Sur la trace de la chouette d'or) is a French armchair treasure hunt book created by communications expert Régis Hauser under the pseudonym "Max Valentin" and illustrated by artist Michel Becker. Launched in 1993, the statue was discovered on October 3, 2024, making it the second longest treasure hunt ever organized (after The Secret).