To the collection “Alex. Through the Dark Worlds" includes four new stories about the adventures of the young half-educated magician Alex, familiar to you from the stories "Hello, Friend!", "Master", "First Enemy", this time in the Dark Worlds: "An Interesting Acquaintance", "The Pursuit" behind the spell", "Snow Fortress", "Betrayal". Here Alex meets a companion and assistant, a very unusual and rather strange creature... Although, what in these worlds is not strange? The collection of stories is part of the “Alex” series.