04:30WE Johns - Biggles Flies NorthEpisode 4: Some Grim EncountersBBC Radio 4 Extra Duration: 15 minutes Fri 31st Jul 2009, 04:30 on BBC Radio 7The crackle of vicious machine-gun fire from another plane forces the Jupiter to take action. Read by Michael Palin. From August 1981.GenresDramaAction & AdventureSeriesWE Johns - Biggles Flies North Source: BBC Online