Dream - a special mental space within which all inhabitants of galaxies can freely communicate, regardless of their race and native language - plays a vital role in the life of stellar associations and systems. People called Mute are also able to penetrate into this space, since contacts Inside, Dreams are realized on a telepathic level. However, the appearance of Sejal among the Mute - a boy who has the gift of freely inserting himself into someone else’s consciousness without the consent of its owner - threatens to disrupt the ancient order of things in the Dream. Lack of balance will inevitably lead to the destruction of space itself and the death of its inhabitants.