Transit

La langue originale est anglais.

It's the ultimate in mass transit systems, a network of interstitial tunnels that bind the planets of the solar system together. Earth to Pluto in forty minutes with a supersave non-premium off-peak travelcard. But something is living in the network, chewing its way to the very heart of the system and leaving a trail of death and mutation behind it. Once again a reluctant Doctor is dragged...