The Crystal of Cantus

The topic of this article may not meet Wikipedia's general notability guideline. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted. Find sources: "The Crystal of Cantus" – news · newspapers · books · scholar · JSTOR (January 2019) (Learn how and when to remove this message)

The Crystal of Cantus
Big Finish Productions audio drama
Series	Professor Bernice Summerfield
Release no.	6.5
Written by	Joseph Lidster
Directed by	Gary Russell
Produced by	Gary Russell
Length	75 minutes

The Crystal of Cantus is a Big Finish Productions audio drama featuring Lisa Bowerman as Bernice Summerfield, a character from the spin-off media based on the long-running British science fiction television series Doctor Who.