Four Greek Plays aims to introduce younger readers for the first time to Greek tragedy through the medium of ''Oedipus the King'' and ''Antigone,'' and to comedy through Aristophanes' ''Acharnians'' and ''Peace.'' McLeish produces an adaptation of the plays which is intended to remove many of the immediate barriers to understanding by the beginner.They are written to be accessible for use in schools and for performance, and contain no Greek text.