I see that I've written both good and bad reviews of David Llewellyn's books; this Tenth Doctor novel has both good and bad elements. On the positive side, it's got some interesting political points to make about society and propaganda and media, and conformity vs imdividualism. On the negative side, there are some very old-fashioned gender stereotypes among the human characters, the Sontarans and even more the Rutans are taken in a direction that isn't awfully consistent with what else we know about them, and the physics of locating a human colony on the surface of the planet Saturn may not have been completely thought through. (Located there for the hydrogen mines, you see.) So on the whole I'm afraid it's a thumbs down for this one.