“Under the Sky of Four Worlds” is Milena Zavozhchinskaya’s novel, the third book of the eponymous cycle, heroic fantasy, romantic fantasy, and humorous fantasy genres. Is it easy to be a fairy? Probably easy if you have a magic wand and a fairy magic textbook. But what if instead of a wand you have a talking familiar and a point of passage between worlds, and instead of a textbook you have a list of duties as a baroness—and a Castle that has gathered under its roof a motley company from different races and worlds? Then this fairy-in-training has to roll up her sleeves and start working. And perhaps the first thing to begin with is the personal happiness of her household. Then dragons will come into the picture, elves too—and even demons. Especially since the kingdom of Vike turned out to be a good one: there’s where to unfold, because its lands lie beneath the sky of four worlds.