Starring: Colin Baker, Nicola Bryant

Written By: Colin Baker, Nicola Bryant

A conference of lexicographers: bromides in tweed. But the leading expert in the field is found dead by her own hand. Can the Doctor deduce who wrote the suicide note and why, exactly, it was riddled with spelling errors?

Starring: Elisabeth Sladen, Jeremy James, Sadie Miller

Written By: Elisabeth Sladen, Jeremy James, Sadie Miller

The body of an old man is found floating in the Thames, although the DNA of the corpse corresponds to an 18-year old friend of Josh and Ellie. Sarah discovers that there is more to ancient dark sorcery than she previously believed...