We have two stories on special offer from today: a mysterious encounter for the Fourth Doctor by Marc Platt and the Sixth Doctor returns to the courtroom once more… but this time he’s defending the Valeyard!

There is some evil in all of us – even the Doctor. Transported aboard the Time Lords' orbiting courtroom, the Doctor once again encounters the Valeyard, an amalgamation of the darker sides of his nature. This time, however, the Doctor isn't in the dock. This time, the Valeyard is the defendant, accused of a crime so terrible that the presiding Inquisitor is forbidden to reveal it even to the court, nor even to his counsel for the defence… the Doctor.

If the Valeyard is found guilty, he'll be executed. Execute the Valeyard, and the secret of his origins dies with him. A secret that the Doctor is desperate to know… and which the Time Lords will stop at nothing to protect.

Co-starring with Colin Baker as the Sixth Doctor are his fellow jurors from Trial of a Time Lord, Michael Jayston plays the Valeyard and the late Lynda Bellingham reprises the Inquisitor.

There's also a classic Fourth Doctor story, with Night of the Stormcrow. 

High atop Mount McKerry sits the observatory. For years now it's been watching the skies. Now something's watching back. Something dark and huge that blots out the stars. Something with giant wings. Something that kills.

When the TARDIS is struck mid-flight, the Doctor and Leela crash-land on the mountain to find they are not the only aliens to be visiting. Beings of nothing infest the complex, staff members are dead or mad. As the survivors argue amongst themselves and attempt to take advantage of the situation, a creature vast and terrible is coming ever closer.

A creature called... Stormcrow.

Alongside Tom Baker and Louise Jameson, they are joined by Ann Bell, Jonathan Forbes, Mandi Symonds and Chase Masterson, who also plays our bounty hunter turned detective Vienna.

Head to page https://www.bigfinish.com/offers/v/bigfinishmas18 and use access code KRAMPUS to access these titles at the special offer price of £2.99 each.

We'll have new Big Finishmas offers each day until January 5th, so make sure you keep an eye on the website to spot all the goodies!

We hope to bring our listeners even more treats on download in 2019, so stay tuned.