Gothic Revival mansion, luxurious interior, grandiose chandelier, intricate stone carvings, pointed arches, ribbed vaults, flying buttresses, stained glass windows, ornate wooden panels, velvet drapes, mysterious ambiance, dim warm lighting, foggy atmosphere, mystical symbols, ancient tomes, mysterious artifacts, lavish furnishings, intricately carved furniture, red velvet sofa, dark wood coffee table, ornate metal candelabra, mysterious lanterns, grand staircase, mysterious corridors, dramatic shadows.