Editing The Cat Who Walks Through Walls (section)

==Background==
''The Cat Who Walks Through Walls'' may be regarded as part of Heinlein's multiverse series, or as a sequel to both ''[[The Number of the Beast (novel)|The Number of the Beast]]''<ref name=chained/>{{rp|145}} and ''The Moon Is a Harsh Mistress.'' During a meeting of the Council of the Time Scouts, representatives from every major time line and setting written by Heinlein appear, including ''[[Glory Road]]'' and ''[[Starship Troopers]]'', and references are made to other authors' works as well.

The title of the book refers to a cat by the name of Pixel, who has an inexplicable tendency to be wherever the narrator happens to be (see [[Schrödinger's cat]]). In one scene Pixel does, in fact, walk through a wall, and it is explained that Pixel is too young to know that such behavior is impossible.