The far future. In recent history, Earth has been occupied by an alien race, but the aliens in turn overthrown. A revived, strong, but paranoid human race reclaims the solar system. Mass fear of a second alien attack won't go away.

Four years hence, the Eighth Doctor and Fitz were supposedly killed when an explosion ripped apart a space station orbiting Jupiter. Anji, without the Doctor to pilot the TARDIS, is trapped in a time she doesn't belong. She decides to investigate the disaster, and, hitching a ride onto a shuttle, skydives in Jupiter to find the satellite has, incredibly, survived intact in Jupiter's upper atmosphere.

But there's someone else who's joined her down there. An elite soldier sent by Earth to investigate. A Professional, with a past linked with the station. And where is the Doctor?

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Enough dramatics. Let me just say that a few of the Doctor Who books I've read had been a bit pants. (still love 'em regardless!) but this one is different. I was hooked straight away, and the final twist totally caught me by surprise. I'd recommend anybody - not even Doctor Who fans especially - to read it. ( )