Fresh traces of the giant flightless Kelenken birds, which became extinct millions of years ago, have been found on the border of an Indian reservation, and the black market is flooded with large bird bones. A group of scientists sets off to explore the areas where the Kelenken are rumored to have been revived. For Noah, participation in the expedition seems like an opportunity to have a good time, but the beginning of the journey turns out to be difficult, local authorities do not want to let scientists in for research, conflicts are brewing within the group, and with every day of the expedition the mystery of the revival of extinct birds is shrouded in more and more darkness. Fiction was used to prepare the cover of the publication. author's work.