Object
Four Frozen Knights
Four human knights artificially preserved in translucent ice blocks as guardians of the micro-key on Marinus. Their thawing revives them as active pursuers, driving the escape sequence in The Keys of Marinus (S1E24).
2 appearances
Purpose
Guard the micro-key against intruders
Significance
Thawing ice revives them as active pursuers, shattering the moment of triumph after key retrieval and driving the group into frantic escape amid rising panic.
Appearances in the Narrative
When this object appears and how it's used