Castrovalva (novelisation)

 was a novelisation based on the 1982 television serial Castrovalva.

1983 Target Books edition
Still weak and confused after his fourth regeneration, the Doctor retreats to Castrovalva to recuperate.

But Castrovalva is not the haven of peace and tranquility the Doctor and his companions are seeking. Far from being able to rest quietly, the unsuspecting time-travellers are caught up once again in the evil machinations of the Master.

Only an act of supreme self-sacrifice will enable them to escape the maniacal lunacy of the renegade Time Lord.

1991 Target Books edition
THE MASTER LEANED BACK, PERMITTING HIMSELF A THIN CHUCKLE THAT FLOATED AWAY INTO A WHISPER. 'OH NO YOU CAN'T ESCAPE. YO'RE MINE, ADRIC, MINE - UNTIL WE HAVE COMPLETED OUR FINAL TASK...'

The TARDIS, controlled by the Master, is rushing towards Event One and imminent destruction; Adric and his computational powers are being manipulated to the Master's own ends.

But the Doctor has been weakened by regeneration and the travellers attempt to travel to peaceful Castrovalva unaware of the web that has been spun by the renegade Time Lord...

Doctor Who - Castrovalva marks the beginning of Peter Davison's tenure of the role of the Doctor and was written by Christopher H. Bidmead, who was script editor of the series during its eighteenth season.

Deviations from televised story

 * Nyssa and Tegan have a more in depth discussion about recursion.
 * When the Master bids farewell to Nyssa and Tegan on the scanner screen, they can see Adric behind him.
 * Medicine is dispensed to the Doctor from a large tin box on top of a chrome and glass medical trolley that moves from a door marked 'Surgery' into the corridor that the Doctor is located. On-screen, it is from a roundel near the location of the Zero Room.
 * Tegan takes notes in Pitman shorthand.
 * Nyssa worries that the Doctor will get high altitude edema.
 * The Master set up the trap 500 years ago.

Writing and publishing notes

 * `This book is dedicated to M.C. Escher, whose drawings inspired it and provided the title. Thanks are also due to the Barbican Centre, London, England, where a working model of the disorienteering experiments provided valuable practical experience.'

Chapter titles

 * 1) Escape from Earth
 * 2) Towards Zero
 * 3) Destination: Event One
 * 4) Russian Roulette
 * 5) Jettisoned
 * 6) The Quest for Castrovalva
 * 7) Within the Walls
 * 8) The Dark Reflection
 * 9) The Occlusion Closes In
 * 10) The Clue of the Chronicle
 * 11) The World through the Eyes of Shardovan
 * 12) The Web is Broken

British publication history
First publication:
 * Hardback
 * W.H. Allen & Co. Ltd. UK


 * Paperback
 * Target

Audiobook
This Target Book was released on 4 March 2010 complete and unabridged by BBC Audio and read by Peter Davison.

The cover blurb and thumbnail illustrations were retained in the accompanying booklet with sleevenotes by David J. Howe. Music and sound effects by Simon Power.

It was later released as part of The Master Collection.