The Bride of Peladon

In 2008, The Bride of Peladon was released by Big Finish Productions.

Cover blurb
Peladon will bathe in oceans of blood!

A mysterious voice, a missing girl and a murdered queen. The Royal House of Peladon is once more plunged into intrigue, terror and death. The Doctor, Peri and Erimem must find their way through a treacherous labyrinth of lies if they are to distinguish friend from foe before it is too late.

For deep beneath the Citadel of Peladon, something infinitely ancient and immeasurably powerful is stirring...