This is the climax to the current Big Finish trilogy of audios featuring Colin Baker's Sixth Doctor and Lisa Greenwood as new companion Flip, by William Gallagher (whose work has generally been pretty good, though I don't seem to have written it up here previously). I must say it is a real tour de force – the plot begins with a joint Indian-British space mission in the year 2071, but then takes a leap into Indian legend, with some excellent guest performances (including Ajli Mohindra, who was Rani Chandra in the Sarah Jane Adventures). My one complaint is that Kate McEwen, playing the evil British character, sounded a bit inconsistent with her accent, sliding from Scotland to Northern Ireland and back again. But otherwise, this has been a fine set of plays, with a stunning twist at the end of this one which I didn't see coming but which had been decently foreshadowed in the previous two (Antidote to Oblivion and The Brood of Erys).