The 13 Ghosts of Scooby-Doo (1985)

S01E03 Me and My Shadow Demon

Title: My Shadow Demon Companion Plot: A shadow creature makes off with the Chest of Demons, prompting the team to venture into the labyrinthine Befuddle Manor to get it back. However, their mission takes a twist when they encounter the formidable Queen Morbidia, who has escaped from the demon chest.