You're on your own, Ace.

The TARDIS is invaded by an alien presence, and is then destroyed. The Doctor disappears.

Ace, lost and alone, finds herself in a bizarre deserted city ruled by the tyrannical, leech-like monster known as the Process.

Lost voyagers drawn forward from Ancient Gallifrey perform obsessive rituals in the ruins.

The strands of time are tangled in a cat's cradle of dimensions.

Only the Doctor can challenge the rule of the Process and restore the stolen Future.

But the Doctor was destroyed long ago, before Time began.

Ten stories - Seven Doctors - One enigma

Los Angeles. The war's over, the GIs are home, Truman's in the White House and the mobsters are making a killing - as usual. Into the office of a private investigator walks a mysterious little man with a story that's out of this world. He says he's lost his memory. He wants the PI to help him. When he turns out his pockets, he produces a pile of bizarre objects, each of which restores a memory and solves a part of the puzzle.

And the memories seem to belong to seven different people.

Decalog is a new concept in Doctor Who fiction: A cycle of ten linked stories. The stories are written by authors who are well known to readers of the New Adventures or Doctor Who magazines - Paul Cornell, Marc Platt, Vanessa Bishop, Jim Mortimore, Andy Lane - and have been brought together by Mark Stammers and Stephen James Walker, who are part of the team that researches and writes in-depth factual books about Doctor Who such as The Sixties and the Handbook series.

Only a few years from now, a squad of UNIT troops is escorting a nuclear missile through the English countryside. At the nearby archeological dig, knights in armour are fighting battles with broadswords - and guns and grenades. The Doctor arrives on the scene and meets two old friends: Brigadier Lethbridge-Stewart, called out of retirement to help in the emergency, and Bessie the souped-up roadster. Ace escapes from death by drowning in a submerged spaceship, only to find herself at the mercy of a demon known as the Destroyer. The action is fast and furious, as expected in a script by Ben Aaronovitch, who wrote the classic Remembrance of the Daleks. And why do the knights address the Doctor as 'Merlin'? What is the power of the sword that Ace retrieves from the bottom of the lake? Will Morgaine carry out her threat to destroy the world?

Perivale, 1983. A column of smoke rises from the blazing ruins of a forgotten, decaying mansion. Perivale, 1883. In the sleepy, rural parish of Greenford Parva, Gabriel Chase is by far the most imposing edifice. The villagers shun the grim house, but the owner, the reclusive and controversial naturalist Josiah Samuel Smith, receives occasional visitors. The Reverend Ernest Matthews, for instance, dean of Mortarhouse College, has travelled from Oxford to refute Smith's blasphemous theories of evolution. And in a deserted upstairs room, the Doctor and Ace venture from the TARDIS to explore the Victorian mansion... Who - or what - is Josiah Smith? What terrible secrets does his house conceal? And why does Ace find everything so frighteningly familiar?

Across the room, in a high-backed leather chair, Victoria saw the old man from the reading room. His face was curiously young for someone so long dead.

In 1966 the Doctor defeated the Great Intelligence, but he knew it wasn't a final victory. And his companion Victoria, whose mind had once hosted the evil entity, might still fall prey to its power.

Now it seems that his fears are justified. In a Tibetan monastery, the monks display unearthly powers - UNIT are investigating. A new university has opened in London with a secret agenda that may threaten the whole country. Victoria, abandoned in an age very different from her own, and haunted by visions of a father she refuses to believe is dead, is slipping into despair and madness. But are the visions which plague her really hallucinations? Or has the Great Intelligence once again made Earth its target for invasion?

LUNGBARROW

'Nonsense, child,' retorted the Doctor.  'Grandfather indeed!  I've never seen you before in my life!'

All is not well on Gallifrey.  Chris Cwej is having someone else's nightmares.  Ace is talking to herself.  So is K-9.  Leela has stumbled on a murderous family conspiracy. And the beleaguered Lord President, Romanadvoratrelunder, forsees one of the most tumultuous events in her planet's history.

At the root of all is an ancient and terrible place, the House of Lungbarrow in the southern mountains of Gallifrey.  Something momentous is happening there.  But the House has inexplicably gone missing.

673 years ago the Doctor left his family in that forgotten House.  Abandoned, disgraced and resentful, they have waited.  And now he's home at last.

In this, the seventh Doctor's final New Adventure, he faces a threat that could uncover the greatest secret of them all.

THE NEW ADVENTURES

MARC PLATT wrote Ghost Light, the last Doctor Who story recorded by the BBC.  He also wrote the New Adventures Cat's Cradle: Time Crucible and the Missing Adventure Downtime.  He is told that he lives in Islington, but would not be surprised if that were Time Lord propaganda.

Cover design: Slatter~Anderson
Cover painting: Fred Gambino

A HAUNTED HOUSE... Something sinister in the cellar. A Neanderthal manservant. A secret from Ace's past... or is it her future? The seventh Doctor and his young companion land back on Earth in Victorian times and are soon caught up in mysterious goings-on at Gabriel Chase, a place the locals prefer to avoid. Read the complete script of this classic Doctor Who story, together with background and technical information.