Time Tunnel (audio story)

 was the third story of the fifth season of Big Finish Productions' Short Trips series. It was read by Katy Manning.

Summary
Reports are coming in to UNIT of trains emerging from a railway tunnel in Sussex, their passengers and drivers dead. The Doctor elects to drive a train through the tunnel himself, but when he emerges Jo sees to her horror that he is covered in ice. Something in the tunnel has driven him close to the point of death. What can it be?

Characters

 * Third Doctor
 * Jo Grant

Continuity
to be added