Verdigris

A sequel to Horror of Glam Rock, this story sees the Doctor and Lucie once again meeting up with the latter's aunt, now running a hotel in the Lake District. The title of the play gives away the nature of the enemy, but you'd have worked that out pretty much immediately anyway - the mystery is more about what they're up to.

Nu Who style, the story has a fair focus on the relationship between Lucie and her aunt, and, indeed, the eponymous Zygon. There's a good mix of humour and drama, making this an entertaining story, if not a stand-out one. If nothing else, the thought of Tim Brooke-Taylor playing a Zygon is just kind of cool.

And the ending is nicely bittersweet, without overdoing things.