Earthworld by Jaquelyn Rayner is exactly the kind of Doctor Who I like. A crazy plot with a lot of action, wit, and twists. She effectively kept me on my toes the whole time (well…I did figure out one of the twists, but I’m convinced the Doctor already saw it coming and that the President of New Jupiter didn’t because he was just a naive moron).
New Jupiter has tried to create Earthworld, a theme park based on every era of Earth’s history. However, the only piece of history they seem to have kind of right is Elvis as King during the 20th century. And the President’s three daughters (really one human split into three bodies – you’ll found out how/why once you read the book) are bent on killing and torturing everyone and everything for their own amusement. The Doctor, and his companions, Ftiz and Anji, must sort it all out.
*Spoilers*(voice and wink by River fully intended) The Knights of the Round Table scenario was completely genius and rather funny. The citizens of New Jupiter have a very different version of the Knights of the Round Table, specifically the part where Morgan Le Fay is actually three people: Morgan, Leigh, and Fay. The Doctor and his companions use this false yarn to their advantage, as the androids they are fighting are Knights of the Round Table and the three evil triplets. (You’ll have to read the book to truly understand. There are so many intricacies that nothing makes sense when one is just talking about it.)