Object
Waterfield's Sealed Gas Trap Box
Dalek-modified sealed container designed to release incapacitating gas; critical to the abduction plot and linked to telephone interference from Dalek tampering.
2 appearances
Purpose
Releases incapacitating gas when opened to trap and subdue intruders
Significance
Triggers the Doctor and Jamie's abduction, exposes Waterfield's Dalek collaboration, and pivots the story from investigation to captivity in the Daleks' experiment
Appearances in the Narrative
When this object appears and how it's used