review   his title was released in February 2024. It will be exclusively available to buy from the Big Finish website until 31 March 2024, and on general sale after this date. The Doctor and Sarah find themselves in an asteroid, on the outer reaches of Earth’s solar system. It’s the future, and humans have colonised this inhospitable place, to mine vital minerals to supply their home planet. However, links with Earth are becoming ever more strained, and forces within the colony are seeking independence. Revolution is in the air. Meanwhile, in the deepest chambers of the asteroid, a powerful force is emerging. Its influence is growing rapidly. But how will it affect Sarah Jane Smith and her place in future history?