Object
Reel of Magnetic Tape with Doctor's Revelations
Nyder grips this reel of magnetic tape ejected from the interrogation room recorder. It holds the Doctor's weary confessions naming Dalek weaknesses and future defeats, forced out under torture to spare Harry and Sarah pain. Davros calls it priceless beyond computation and demands Nyder guard it for Dalek memory bank integration. Later, cornered in the corridor, Nyder admits he stashed it in Davros' office. The Doctor presses allies to seize it alongside the Time Ring, desperate to destroy this foreknowledge before Daleks exploit it.
12 appearances
Purpose
Records Doctor's spoken knowledge of Dalek vulnerabilities for Davros to analyze and counter by loading into Dalek systems
Significance
Drives Doctor's urgent retrieval mission amid genocide dilemma; its destruction could avert invincible Daleks but tempts timeline tampering, heightening his moral stakes as Davros' coup and Thal deadline close in
Appearances in the Narrative
When this object appears and how it's used