"Yarilina Book" is a Ruskolan chronicle that tells about the events of the history of Ruskolani, or Rus Alanskaya, at the end of the 3rd - beginning of the 4th centuries AD. It is devoted mainly to the Busov Times. It was written by the Magi Moveslav. The manuscript of the Yarilina Book is mentioned in the catalogs of A.I. Sulakadzev, an archaeographer of the 19th century. In this edition, the reading of the runica by the Old Slavonic letter and translation are published for the first time. Translations are accompanied by explanations.