Midnight Mysteries: Haunted Houdini

Midnight Mysteries: Haunted Houdini is a hidden-object/puzzle video game developed and published by MumboJumbo, LLC, released on 29 january (PC), 20 march (Mac), 22 march (iPad) 2012. A deluxe version was released on 28 march 2012 with some content added at the end.
While investigating on the disappearance of Houdini, there is a lot of references to Conan Doyle and Sherlock Holmes as the famous author is on the suspects list (see screenshots).
Editor's description
Famed illusionist Harry Houdini knew he wouldn't escape death forever. When he promised his wife that he would try to reach her from the afterlife, it was seen as the ultimate stunt. But after years of séances, Bess was never able to reach Harry in this life or the next, and her spirit has come to you in a final plea to reunite her with her partner! Digging deeper into Houdini's past, you'll find bitter rivalries and interview Harry's closest friends and his staunchest critics. Consult famous friends like Sir Arthur Conan Doyle and rival Thurston the magician, while you solve puzzles and track Houdini's ties to a super secret society.
Screenshots
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Midnight Mysteries: Haunted Houdini
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Undershaw, the house of Conan Doyle
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Harry Houdini and Sir Arthur Conan Doyle
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Sir Arthur Conan Doyle
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Lady Conan Doyle (Jean Leckie)
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Kingsley Doyle, the first son of Arthur Conan Doyle
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Cards of Conan Doyle family
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THe Strand Magazine featuring Sherlock Holmes
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Sherlock Holmes
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Deerstalker on table
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The Hound of the Baskervilles