Well, this has made enduring parts one and three of the arc worthwhile. There are so many good points to this book I don't know where to begin. It's not based around some psychotic aliens trying to kill lots of people gruesomely or take over the universe, but about the principal characters themselves, and only in its second life, through novels, has Doctor Who the opportunity to explore these themes. Another brilliant twist in the plot that they just couldn't do on TV is the sheer length of time this book spans, and how from now on you have to remember that Sam's a young woman. DOCTOR as a reflection of the The Doctor is an original enemy, and watching the Doctor fall apart in prison, whilst sad, at last breaks through this invulnerability he seems to have been given in previous books. Great stuff, as usual, from Blum and Orman. I shall have to go back to Vampire Science now...