Doctor Who
Spin-Offs: New Worlds
A series of books produced by Big Finish Productions which explore some of the characters and ideas created for their Doctor Who audio adventures in further detail.

The series of books launched with Wildthyme on Top, which also led into a number of audio adventures featuring Iris Wilthyme. The Bernice Summerfield range of books from the company is expected to be abosrbed into the New Worlds line in the near future.
Wildthyme On Top
Edited by Paul Magrs

Most Horrid — Justin Richards
The Sleuth Sayers — Jake Elliot
Minions of the Moon — Philip Purser-Hallard
Beguine — Stephen Cole
Blame Iris — Stewart Sheargold
Came to Believe — Craig Hinton
Rough Magic — Kate Orman
The Mancunian Candidate — Lance Parkin
Iris and Irregularity — Jacqueline Rayner
The Evil Little Mother and the Tragic Old Bat — Jonathan Blum

UK / Hardback / Big Finish Productions / 2005
  • Wildthyme on Top is an anthology of stories featuring the character who has appeared in a number of Doctor Who novels by Paul Magrs.
The Coming of the Queen
by Iain McLaughlin and Claire Bartlett

UK / Hardback / Big-Finish Productions / 2005
  • Novel featuring Erimem, the Egyptian Queen who was created for the audio play Doctor Who: The Eye of the Scorpion, and who first appeared in print in the Telos novella Doctor Who: Blood and Hope in 2004.
Project: Valhalla
by Cavan Scott and Mark Wright

UK / Hardback / Big-Finish Productions / 2005
  • Project: Valhalla features the covert organisation that appeared in the Doctor Who audio plays Project: Twilight and Project: Lazarus.