Back Cover Blurb — Target Books (1977)
Forced off course by the Mandragora Helix, the Tardis lands in the province of San Martino in fifteenth-century Italy. Here, the court astrologer, Hieronymous, has been taken over by the Mandragora energy-form — Hieronymous and the other members of his star-worshipping black magic cult will be used as a bridgehead, enabling the Mandragora Helix to conquer the Earth and rule it through their chosen servants.

The Doctor has to defeat not only the Mandragora energy, but the evil schemes of the murderous Count Frederico who plans to usurp the place of his nephew, the rightful ruler of the province.

Back Cover Blurb — Pinnacle Books
IN 1492, DOCTOR WHO CAME OUT OF THE BLUE

It is the Italian Renaissance during the corrupt reign of the powerful Medicis. Doctor Who, angry because he was forced to land on Earth by the incredible Mandragora Helix, walks right into a Machiavellian plot. The unscrupulous Count Frederico plans to usurp the rightful rule of his naive nephew. This, with the help of Hieronymous, influential court astrologer and secret cult member.

Intent on righting all wrongs, Doctor Who studies their political maneuvers. He uncovers a larger, even more malevolent plot — a plot to rule not only San Martino Province, but the entire world! Hieronymous has been taken over — both in mind and body — by the Mandragora energy ball, an alien, but all-powerful intelligence. Using Hieronymous and his cult members as a bridgehead, the Mandragora Helix intends to conquer Earth and dominate its people!

The question is, will Doctor Who prove a true Renaissance man? Will he be able to drain the Mandragora of its power and foil the Count as well?

Back Cover Blurb — Target Books
The Tardis lands in England, and Sarah, the Doctor's companion, looks forward to going home.

A freak accident in a quarry leaves the unconscious Sarah clutching an enormous stone Hand.

The Hand is the only surviving remnant of Eldrad, an alien super-being expelled from his planet, Kastria — and it has the power to control the human mind. Using Sarah as its instrument, the Hand goes in search of the atomic energy it needs to regenerate Eldrad's body.

Eldrad is determined to return to Kastria and punish his enemies. The Doctor and Sarah are caught up in the terrifying conclusion of a drama of betrayal and revenge that began millions of years ago.

Back Cover Blurb — Target Books
The Doctor is suddenly summoned to Gallifrey, the home of the Time Lords, where his ghastly hallucination of the President's assassination seems to turn into reality. When the Doctor is arrested for the murder, there is a hideous, dark, cowled figure gleefully watching in the shadows.

Faced with his old enemy, the Master, Doctor Who approaches defeat in a battle of minds in a nightmare world created by the Master's imagination. But the Master's evil intentions go much further — he has a Doomsday Plan. It is up to the Doctor to prevent him from destroying Gallifrey and taking over the Universe!

Back Cover Blurb — Target Books (1978)
Setting the controls for Earth, the Doctor is surprised when the Tardis lands in a primeval forest. Has the Tracer gone wrong or has some impulse deep in his unconscious mind directed him to this alien planet? In investigating the forest, the Doctor meets and assists Leela, a warrior banished from her tribe, the Sevateem. Through Leela, it gradually becomes apparent that the constant war between the Sevateem and the Tesh has been instigated by the god they both worship, Xoanon.

Xoanon, an all-powerful computer, is possessed by a desperate madness — a madness that is directly related to Doctor Who, that causes Xoanon to assume the voice and form of the Doctor, a madness that is partly caused by the Doctor and that only the Doctor himself can rectify!

The Doctor must not only do battle with Xoanon, but also must escape from the savage practices of the Sevateem, and the technically mind-controlling destructive impulses of the Tesh.

Back Cover Blurb — Target Books (1979)
On a desert planet the giant sandminer crawls through the howling sandstorms, harvesting the valuable minerals in the sand.

Inside, the humans relax in luxury, while most of the work is done by the robots who serve them.

Then the Doctor and Leela arrive — and the mysterious deaths begin. First suspects, then hunted victims, Leela and the Doctor must find the hidden killer — or join the other victims of the Robots of Death.

Back Cover Blurb — Target Books (1977)
Stepping out of the Tardis into Victorian London, Leela and the Doctor are confronted by menacing, diabolical horrors shrouded within the swirling London fog — a man's death cry, an attack by Chinese Tong hatchet men, giant rats roaming the sewers, young women mysteriously disappearing...

The hideously deformed Magnus Greel, conducting a desperate search for the lost Time Cabinet, is the instigator of all this evil. Posing as the Chinese god, Weng-Chiang, Greel uses the crafty Chang, and the midget manikin, Mr Sin, to achieve his terrifying objectives.

The Doctor must use all his skill, energy and intelligence to escape the talons of Weng-Chiang.

Back Cover Blurb — Pinnacle Books (1979)
It's the Victorian London of Sherlock Holmes. Shrouded in the swirling mists, Doctor Who confronts diabolical horrors as he unravels the mystery surrounding the disappearance of several young women.

Doctor Who learns a Chinese magician, the crafty Chang, and his weird midget manikin, Mr. Sin, are mere puppets in the hands of the hideously deformed Greel, posing as the Chinese god, Weng-Chiang. It is Greel who steals the young women; it is Greel who grooms sewer rats to do his bidding — but there is even more, much more...

Will Doctor Who solve the Chinese puzzle in time to escape the terrifying talons of Weng-Chiang?