For the next 48 hours only, you can enjoy our seasonal offer on a special trilogy of Doctor Who Companion Chronicles – all featuring Terry Molloy as the villainous Quadrigger Stoyn! Download each title today for just £2.99!

We begin with a landmark title for the First Doctor – his earliest adventure!

When the First Doctor and his grand-daughter Susan escape through the cloisters of Gallifrey to an old Type 40 Time Travel capsule, little do they realize the adventures that lie ahead…

And little do they know, as the TARDIS dematerialises and they leave their home world behind, there is someone else aboard the ship. He is Quadrigger Stoyn, and he is very unhappy…

Doctor Who: The Beginning is written by Marc Platt and stars Carol Ann Ford and Terry Molloy.

The TARDIS materialises on a dying world circling a dying sun, where the Doctor, Jamie and Zoe are welcomed to Sanctuary - an entire monastery carved out of a mountain.

But little here is quite what it seems.

Quadrigger Stoyn has waited through the centuries. And it is time for the Doctor to pay for his first terrible mistake.

Doctor Who: The Dying Light is written by Nick Wallace and stars Frazer Hines, Wendy Padbury and Terry Molloy.

The search for the final segment of the Key to Time takes the Doctor and the First Romana to Ancient Rome. The Time Lady is appalled when her companion prefers to watch the latest Plautus comedy rather than complete their mission, and is even less delighted to meet the playwright himself.

But all is not what it seems, either onstage or behind the scenes…

In the far, far future, the Second Romana is destined to have her own encounter with a legacy of Rome, but Stoyn has been waiting. And his actions will set Romana on a collision course with her own past.

Quadrigger Stoyn wants his final revenge on the Doctor, and only Romana stands in his way.

Both of her.

Doctor Who: Luna Romana is written by Matt Fitton and stars Lalla Ward, Juliet Landau and Terry Molloy.

All three of these releases can be downloaded today for just £2.99 each.

Further entries in our Doctor Who – The Companion Chronicles range can be found here, with Doctor Who: The Second Doctor Volume 1 available to pre-order today, containing four brand new stories.

And don't forget – throughout the entire 12 Days of Big Finishmas, we're offering our money-saving Doctor Who Super Subscription – 42 titles from just £325, including releases extending all the way to 2020! Click here for more information.

Check back tomorrow for the second day of Big Finishmas!