When the TARDIS lands on Panenka, the Doctor, Tegan, Turlough and Nyssa discover a community falling apart at the seams - plagued by thefts, and mysterious disappearances among the 'piggybackers' who eke out a desperate existence on the comet.
- Format: CD-Audio
- Publisher: Big Finish Productions Ltd
- Publication Date: 31/05/2012
- Category: Science fiction
- ISBN: 9781844356287