The Revenants (audio story)

 was a free Companion Chronicle audio story released with a code in DWM 448. It is also available with the limited edition of Big Finish's 50th anniversary release The Light at the End.

Publisher's summary
The present day: the Orkney Ferry, where Ian Chesterton meets a stranger in whom he can confide. Decades earlier: the TARDIS lands on Orkney and Ian and Barbara are abandoned when the Doctor and his ship vanish in front of their eyes. As the pair head for civilisation, something is stirring in the treacherous bog lands.

Only the ancient Wissfornjarl can protect them...

The Marsh-Wains (1)
to be added

The Wissfornjarl (2)
to be added

Characters

 * Ian Chesterton - William Russell
 * Jeannie/Janet McKay - Sharon Small

Continuity

 * Ian tells Jeannie how he and Barbara came to be aboard the TARDIS. (TV: An Unearthly Child)
 * Ian mentions that Susan had recently left the TARDIS after falling in love with David Campbell in the 22nd century. (TV: The Dalek Invasion of Earth)
 * Ian refers to the fact that he once came across a sea of acid on Marinus. (TV: The Keys of Marinus)
 * Barbara refers to their visits to Salem Village, Massachusetts in 1692 and 1693 (PROSE: The Witch Hunters) and Mexico in the 15th century (TV: The Aztecs).
 * The Doctor reminds Ian that they have encountered beings with psychic abilities before, namely the Sensorites on the Sense Sphere in the 28th century. (TV: The Sensorites)
 * The Doctor has read Gulliver's Travels. During his second incarnation, he would meet its protagonist Lemuel Gulliver in the Land of Fiction. (TV: The Mind Robber)