Short story: “And He Built A Crooked House” -Robt. A. Heinlein
http://homepages.math.uic.edu/~kauffman/CrookedHouse.pdf
Brian Anderson
Short story: “And He Built A Crooked House” -Robt. A. Heinlein
http://homepages.math.uic.edu/~kauffman/CrookedHouse.pdf