Far across the sea, hundreds of miles from their native forests, where the young Venn Korenga knew every tree, from the river Cheryomukhovy Yug, a tributary of the glorious Svetyn, high in the mountains lives an amazing and unsociable tribe of villas, in which every person has a brother - a winged Simuran dog. Legends say that the very first simuran was an ordinary dog, but the Gods endowed him with powerful wings. Only those who have dreamed of flight all their lives understand what great happiness befell the Villas, for their winged brothers lift them into the skies... A long and dangerous journey awaits young Korenga, the son of the same Venn tribe to which the Gray Dogs family belonged. . And even though this young man is not such a mighty warrior as Wolfhound, even though he cannot reveal to anyone the terrible secret that drove him on his journey, he will not give up, no matter what intrigues the insidious fate may plot.