Get this Mac game from GOG.com which is DRM free there and runs out of the box. Click on the links mentioned here, create an account using the signup in the top bar on the GOG.com website and buy the game. When you create a free account you will receive standard as a bonus 11 more free Mac games. Where you are waiting for?
All is not well in Blackmoor Manor, a 14th century English mansion haunted by a tragic past. You, as Nancy Drew, embark on your first international adventure to visit Linda Penvellyn, your neighbor’s daughter and newlywed wife of a British diplomat. A mysterious malady keeps Linda hidden behind thick bed curtains. Is she hiding from something or someone, or is a more menacing threat stalking her? Face your fears to find the truth in Nancy Drew: Curse of Blackmoor Manor!