The Judgement of Isskar (audio story)

 is the first of The Key 2 Time audio stories, featuring a new companion, Amy, played by Ciara Janson opposite Peter Davison's Fifth Doctor.

Publisher's summary
A new adventure in time and space for the Fifth Doctor and his new companion, Amy, as they search for the Key to Time.

On a planet where Time stands still, the Doctor meets a woman who is just a few minutes old. She is a Tracer, sent into our Universe by her makers to locate the six segments of the Key to Time. This being without a name wants the Doctor to be her assistant, but she doesn’t tell him the whole truth. Not at first.

Their first port of call is Mars, where a society that one day will become Ice Warriors lives in peace and civility. But the Doctor’s arrival will change all that. The universe is dying, a choice must be made, and the Judgement of Isskar will be declared. The price must be paid - even if it takes centuries…

Cast

 * The Doctor - Peter Davison
 * Amy - Ciara Janson
 * Zara - Laura Doddington
 * Isskar - Nicholas Briggs
 * Harmonious 14 Zink - Andrew Jones
 * Mesca - Raquel Cassidy
 * Thetris - Jeremy James
 * Wembik - Heather Wright

Guardian technology

 * Amy's nose tickles when in the presence of a segment of the Key to Time, in this case, the form of a compass.

Species

 * The Martians, who would later become known as the Ice Warriors, do not recognise the term "warrior."

Continuity

 * Due to the Doctor's previous DIY combining of the Key to Time, the segments are now beginning to decay. (DW: The Armageddon Factor)
 * The Doctor mentions his last visit to Mars in the company of Peri Brown. (BFA: Red Dawn)

Timeline

 * The Judgement of Isskar occurs after ST: Methuselah
 * The Judgement of Isskar occurs before BFA: The Destroyer of Delights