Three 30' Agatha Christie short story full-cast dramatisations: Philomel Cottage/ Magnolia Blossom/ Swan Song. Agatha Christie is the acknowledged ' Queen of Detective Fiction'. Nearly all of her Hercule Poirot & all of her Miss Marple novels have been adapted for BBC Radio & released by the Radio Collection. These releases are the first non-Marple/ Poirot novels to be adapted for radio cassette & CD release.