The Guardians of Prophecy
The Guardians of Prophecy is a Big Finish Productions audio drama based on the long-running British science fiction television series "Doctor Who". Plot. The Doctor and Peri arrive on the last remaining world in The Traken Union. The peaceful planet Serenity is also the home of the mysterious Melkur. Critical reception. "Doctor Who Magazine" reviewer Matt Michael praised the play, singling out Baker's scenes with Thorne as especially good.