The fourth book in the series about Niel. The first one is here: Days and months passed, and the nine-color door continued to hang high in the sky. Ordinary people have already stopped paying attention to her, it’s as if she has fallen out of their visibility zone, and has become something ordinary and familiar. Not many knew what the appearance of this sign foreshadowed. Invasion. The demonic race, the second in Rönne's list, has officially entered this world.The text of the book was translated from the original language using an artificial intelligence program. For the most part, the translation of the text is of very high quality, but in some cases, due to the imperfection of the technology, there may be incorrect phrase translations in the text, as well as single words and expressions may not be translated.