Locke_key_2020_streaming_s01e03 -

: While in ghost form, Bode meets Chamberlain Locke in the family cemetery, who reveals that Rendell and his brother Duncan used the keys constantly as children.

: While not used by the Lockes yet, it is revealed that Ellie Whedon possesses this key, which is used to summon "echoes" in the wellhouse. Mysteries and Clues Locke_Key_2020_streaming_s01e03

In the third episode of , titled " Head Games ," the Locke siblings use the Head Key to explore their own minds and uncover hidden memories of their father. The episode is a turning point where the series moves into deeper psychological and supernatural territory as the children confront their grief and fear. Key Plot Developments : While in ghost form, Bode meets Chamberlain

: Using the Head Key , the children discover that their minds manifest as physical spaces: Bode’s is a childhood arcade full of toys, while Kinsey’s is a vast, organized shopping mall . The episode is a turning point where the