Shot down over North Vietnam in 1965 and held captive by the Viet Cong, US fighter pilot Bob Shumaker spent eight years and one day building a house in his mind.

A psychologist might suggest that Shumaker was building a place in which he could escape the realities of life in the notorious prison known as the Hanoi Hilton. It would also have been a highly efficient way to keep his faculties intact...

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