The fourth and final addition to the scriptwriting team for the third series was Trevor Hoyle, who like Tanith Lee was primarily a writer of novels - though not especially acclaimed or famous, his Q series of sci-fi books had found enough of an audience to run to a trilogy. He had also written for B7 before in a way, penning the two official novelisations based on the series - Terry Nation's Blake's Seven adapting on the opening episodes and Project Avalon, covering the initial Travis/Servalan battles. It's been a while since I've read them but despite being based on scripts rather than finished episodes my memory is they were satisfactory; Hoyle would write a third in 1981, Scorpio Attack, based on the opening salvo of the fourth series. This would be his only script for the actual show, however, and it's really not very good.
