The science fiction novel by the famous American science fiction writer A. Kolua takes the reader to the distant planet Esmir. The people and demons who inhabit it hate each other, and the planet is literally in a fever from endless wars. The king of demons Manasiy and a young man of a noble family, Iraj Protarus, who is helped by his childhood friend, the powerful magician Safar Timur, are going to fight for the right to become the great emperor Esmir. However, the intrigues of insidious courtiers turn former friends into enemies, and Safar is forced to flee from the palace of King Protarus...