The Mystery of the Abandoned Chapel

At midnight, the ghost of the former owner appears at the ruins of an ancient noble estate. And in the abandoned chapel nearby, the evil forces hold their gatherings. According to Petya and his friends, these are bad omens, as such phenomena almost always foretell trouble. However, who and from where it threatens is completely unclear. The members of the secret Maple Leaf Brotherhood have conceived a risky experiment. They decide to summon the ghost to clarify everything. The results of the experiment are simply astounding…