Object
Doctor's Failed Cave Rock
A hefty, jagged rock grabbed from the cave floor and used as an improvised hammer to smash the giant clam's shell, but discarded after proving ineffective. Symbolizes the Doctor's initial brute-force approach to the problem.
3 appearances
Purpose
Improvised hammer to smash the giant clam's shell and release Harry's leg
Significance
Exposes limits of the Doctor's physical resourcefulness against Davros's genetic horrors, amplifying the cave's dangers and propelling the team's fragile escape toward larger Dalek threats
Appearances in the Narrative
When this object appears and how it's used