River Song always enjoys a good party, even when she’s not entirely sure where or when the party is taking place. But the party she ends up at is one where not everything – or indeed everyone – is what it seems… Being River, it doesn’t take her too long to go exploring, and it doesn’t take her too long to get into trouble. The sort of trouble that involves manipulating other civilisations, exploitation, and of course murder. River is confident she can find the killer. But can she identify them before anyone else – or quite possibly everyone else – gets killed?