Object

Zaphra Gas

Lobos directs guards to pump Zaphra gas, a paralytic agent with lethal potential, into Building 6-2's ventilation. This targets Barbara and Vicki, the rebel women holding out there. The Commander recoils at the order's brutality, while the gas looms as an invisible threat later mentioned by the Commander at Morok HQ to flush escaped aliens like Ian. Lobos deploys it with cold precision, turning the building into a death trap.
2 appearances

Purpose

Incapacitate or kill occupants via ventilation to force surrender of rebels

Significance

Escalates conflict from tactical pursuit to mass casualty threat, shattering morale and creating urgent moral dilemma for TARDIS crew and Xerons; Commander's hesitation exposes Morok command fractures

Appearances in the Narrative

When this object appears and how it's used

2 moments