The Perpetual Bond (audio story)

Publisher's summary
When the TARDIS materialises in a familiar junkyard in the 1960s, the Doctor and Steven are soon embroiled in a mystery in the City of London. Who are the mysterious, bowler-hatted businessmen with their deadly umbrellas? What secret is young Oliver Harper desperately trying to conceal?

Contracts have been signed. A deal is in place. The Doctor discovers that perhaps not even he can stop a terrible business...

Plot
to be added

Cast

 * Steven Taylor - Peter Purves
 * Oliver Harper - Tom Allen

Story notes

 * This is the first Big Finish audio drama to introduce a new companion for any incarnation of the Doctor prior to the Fifth Doctor.
 * This audio drama was recorded on 27 May 2010.

Continuity

 * Steven recalls the recent deaths of Katarina, Bret Vyon and Sara Kingdom (TV: The Daleks' Master Plan) and the departure of Ian Chesterton and Barbara Wright (TV: The Chase).
 * The Doctor returns to I.M. Foreman's junkyard at 76 Totter's Lane for the first time since departing 1963 in the company of Ian, Barbara and his granddaughter Susan Foreman. (TV: An Unearthly Child) He would later do so again in 1963 during his both his fourth and seventh incarnations (PROSE: Those Left Behind, TV: Remembrance of the Daleks) and in 1985 during his sixth incarnation (TV: Attack of the Cybermen). By 2021, Totter's Lane is a commercially zoned area of Shoreditch which is mostly made up of office blocks. A car park has been built on the former location of the junkyard. (AUDIO: The Harvest)
 * Steven refers to his previous visit to London in 1912. (AUDIO: The Suffering) He would later visit the city once again in March 1965. (TV: The Massacre of St Bartholomew's Eve, PROSE: Salvation)
 * The Doctor and Steven previously visited 1966 in the company of Sara Kingdom when the TARDIS materialised in East Berlin during that year. (AUDIO: The Anachronauts)