Object
Doorbell at Professor Watkins' House (Labeled 'Watkins')
A mechanical doorbell affixed to the exterior of Professor Watkins' residence, labeled with his name. The Doctor and Jamie ring it repeatedly, but it is answered by Isobel Watkins, Watkins' niece, who is visibly irritated by their persistence.
1 appearances
Purpose
Summons house occupants to answer visitors at the door
Significance
Triggers the tense first meeting with Isobel as gatekeeper, her hostility blocking access to Watkins and amplifying suspicions around his disappearance and International Electromatics ties
Appearances in the Narrative
When this object appears and how it's used