Little Caldwell was a village in the Berkshire region of England, not far from the town of Newbury. (PROSE: Return of the Living Dad) It was located near an United States Air Force base, USAF Greenham Common, where the Seventh Doctor was once imprisoned and tortured. (PROSE:The Left-Handed Hummingbird)

Little Caldwell was home to the Pyramid, a combination coffee shop and book shop that was also secretly a safe house for aliens and the temporally stranded. (PROSE: Return of the Living Dad)

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