Fans of the outstanding Doctor Who audio spin-off series 'Jage and Litefoot' are no doubt wondering where the fourth series will lead. Big Finish has just revealed the excited new adventures 'Voyage to Venus' and 'Voyage to the New World,' to be released in December.

Sixth Doctor Specials details revealed... November and December 2012 sees the release of two special Sixth Doctor stories. And for these adventures only he has two very familiar companions in the form of Henry Gordon Jago (Christopher Benjamin) and Professor Litefoot (Trevor Baxter).

Stepping temporarily out of their hugely popular spin-off series Jago and Litefoot, the Investigators of Infernal Incidents will journey in the TARDIS into the distant future and into the past.

Doctor Who: Voyage to Venus (November) takes the Doctor, Jago and Litefoot to the planet Venus, now an exotic jungle world ruled by the dangerous Grand Empress Vulpina. As Jago becomes Vulpina's pet, the Doctor and Litefoot must evade the travelers evade her assassination squad and the rampaging Shanghorns. The story is written by Jonathan Morris and guest stars Juliet Aubrey (Primeval) and Hugh Ross (Counter-Measures).

In Doctor Who: Voyage to the New World the TARDIS lands on Roanoke Island in the year 1590, where the colonists are haunted by ghostly children. Who is the old man of Roanoke? The answer may cost Jago's life… The story is written by Matthew Sweet and guest stars Ramon Tikaram (EastEnders, This Life) and Philip Pope (The Fast Show, KYTV).

These two releases are part of a number of special offers from Big Finish. Buy before the end of December 2012, and the CDs are just £5 each and downloads £1 each.

You can also purchase them as part of a fantastic subscription bundle deal along with the Doctor Who: UNIT: Dominion box set (starring Sylvester McCoy, Beth Chalmers, Tracey Childs and Alex Macqueen), the Doctor Who Dark Eyes box set (starring Paul McGann) and Doctor Who: Love and War (starring Sylvester McCoy, Sophie Aldred and Lisa Bowerman) for just £65. That's 14 discs for just £65! (or £55 on download).

But remember – the offer is only open until the end of December.

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The Jago and Litefoot audio series, expanded on the two fan favorite characters from the Tom Baker classic 'The Talons of Weng-Chiang,' is so much fun. Written with sharp wit and uncanny brilliance, the unlikely adventures are highly recommended. Teaming the pair up with the most successful of audio Doctors, Colin Baker, is sheer magic.