Mystery Case Files: Ravenhearst is the third instalment in the Mystery Case Files franchise and was released in December 2006 and features an investigation centered on a mysterious manor located in England. Players find objects to unlock diary pieces to follow the life of Emma Ravenhearst. Mystery Case Files: Ravenhearst introduced elaborate door puzzles to the series that were similar to a Rube Goldberg type puzzle. Source: Wikipedia, "Mystery case files", available under the CC-BY-SA License.