“Earthly Happiness” is a continuation of the “Fourth Beta” cycle, it features the same characters: Maran, Dan, Nika and others. The first part of the novel is devoted mainly to the love story of Maran and the earthly girl Naya; it turns out that there are deep differences in intimate life on Earth and Toren, and although earthlings and Torenians belong to the same biological species, the unity of biology does not at all imply the unity of culture. However, the vicissitudes associated with the “interstellar romance” do not interfere with the preparation of the expedition to Edura. It is assumed that Edura is also inhabited by people, and so it turns out, but Edura society, which at first glance appears peaceful, calm and simple-minded, also has its own secrets.