The TARDIS brings the fourth Doctor, Romana and K-9 to the Rock of Judgement: a court, prison and place of execution built into a rocket-powered asteroid. There they become embroiled in an investigation by the system's finest lawman.

What connects the macabre gallery of artist Menlove Stokes with the slaughter of a survey team on a distant planet? Why is Margo, chief of security, behaving so strangely? And which old enemies of the Doctor are aboard the unmarked spaceship making its way towards the Rock?

This adventure takes place between the television stories THE CREATURE FROM THE PIT and NIGHTMARE OF EDEN.

GARETH ROBERTS has written two highly acclaimed books in the Doctor Who New Adventures series, THE HIGHEST SCIENCE and TRAGEDY DAY. He enjoys cookery and disco dancing. Simultaneously.