The Crown of Thorns, the most precious and revered relic in the Notre Dame Cathedral, has disappeared. As chief investigator assigned by the Préfecture de Police, it’s up to you to track down the priceless artifact. Use your Hidden Object talents to crack the case in Hidden Mysteries: Notre Dame and save the Crown of Thorns before it’s too late. Incredible gameplay Beautiful graphics Find The Crown of Thorns! Source: The Publisher Website.