I slightly regretted my decision to get into the Big Finish First Doctor stories when the last one I tried turned out to be rather a dud. But this is much better, a story of the Doctor, Ian, Barbara, Vicki and Jospa landing on a very alien planet with vividly realised aliens, and also the question of just how many people are in the Tardis crew. It’s a concept that was also visited in the Buffy episode Superstar and the Torchwood episode Adam (and the Torchwood novel Border Princes), but I think we have a new twist here – rather than having a strange new character intruding on our heroes’ regular setup, we have both a strange new character and a strange new world, and this being a Big Finish audio which was released more than fifty years after the TV stories with which it is in continuity sequence, we listeners don’t quite know what to make of it at first. On top of that, as I said, the aliens are very alien and well depicted; and it’s William Russell’s second last audio performance, as both Ian and the Doctor, recorded shortly before his 90th birthday. James Joyce (no relation) is suitably suave as the extra companion Jospa, and Kate Byers as the lead alien. You can get it here.