A scout arrives on the planet Melaquin in search of evidence of the criminal activities of the High Council of the Admiralty. He finds out that Festina's friend Ramos belongs to the race of so-called "glass people", created at one time by the Shadill civilization. survived a fall from a great height and is now a dangerous witness to what was happening on the planet. Moreover, the very existence of the surviving girl is for some reason objectionable to her former creators. To escape from the “long arms” of the admirals and find out the reason for the close attention of the Shadills to her person, the transparent girl, together with her friends, undertakes a dangerous journey.