The paper discusses a medieval South Slavonic text referring to the Book of Daniel in the framework of the Chronicle of Johannes Zonaras contained in manuscript No. 105 which is kept in Zograf Monastery. The author believes that this Slavonic version of the Chronicle was compiled by Konstantin Kostenečki. The author compares the version of the Book of Daniel in the Zograf manuscript with older Slavonic translations and versions of the Book of Daniel known to him to highlight the differences and the specific Constantine’s approach that is somewhat unique for this book from the Bible. This comparison makes it evident that Zograf 105 preserves a unique version of this biblical book which is not known to medieval Bulgarian and Greek written traditions. The juxtaposition is carried out on structural and lexical levels.