The Mysterious Robbers and Mansion Case: Part 1 Meitantei Conan : Season 4 Episode 8

"The Mystery of Bludcraven Manor (Part 1)" -- When Conan and Rachel join Richard for a trip to Bludcraven Manor, they learn of a troubling secret that may link Morfius Bludcraven, the original lord of the estate, to a band of thieves known as The Goblins.