Kostroma House of the Dead (House with a Ghost)

No reliable information about a specific 'Kostroma House of the Dead' (also styled 'House with a Ghost') appears in the supplied research notes. The provided sources include a general article on the House of Romanov and an article on the Slavic rusalka, neither of which mentions a haunted house in Kostroma or provides verifiable historical, geographic, or eyewitness material about such a site. Because the supplied material does not reference the location, its history (construction, ownership, notable incidents), current condition, or accessibility cannot be established from these sources. Contextual material in the sources (general Russian imperial history and Slavic folklore about rusalki) may be regionally relevant background for researchers of Russian hauntings, but these items were not presented in the sources as connected to any Kostroma house. Therefore any specific claims about hauntings, entities, or explanations for a 'Kostroma House of the Dead' would be speculative and are not included here.