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Halkonite puzzle box

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Halkonite puzzle box
Halkonite
Type: Halkonite steel
Place of origin: Halkon
Used by: Sarah Jane Smith
Appearances: TV: The Day of the Clown, PROSE: Day of the Clown

Halkonite puzzle boxes were made from Halkonite steel. They were impenetrable. Nothing could escape them, not even thoughts.

In 2008, Sarah Jane Smith used a box made of Halkonite steel to contain a fragment of the Weserbergland meteorite where the Pied Piper had been trapped. (TV: The Day of the Clown)

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