The house was terrible - built of dirty gray brick and all askew. Its entrances seemed to have quarreled, and a huge pipe was impinging on the roof. When Rina moved here, she immediately realized that something strange was going on here, because at night the walls howl as if they were in pain. And one day, on the very verge of sleep and reality, she heard a whisper: “Come in a spiral...” It seemed as if someone was calling for help. Someone not from our space. From the Heartwood. Finding themselves in this distorted world, Rina and her friend Tim learn: the heart of the house has been stolen, which is why it howls. If he is not found, the residents are in danger...