Gauntlet's Bestiary of the Fourth Universe

Gauntlet's Bestiary of the Fourth Universe was a book in the TARDIS library. It had entries on all manner of beast in the fourth universe, including Bligh strawberries, Bliny scuttledabs, blister beetles, Blithewings and blitzen fish.

Susan Foreman and Lucie Miller sought this book in the TARDIS library for more information on blitzen fish. They learned more about them, as one was wreaking havoc in the TARDIS. (AUDIO: Relative Dimensions)