Two groups, the Snakes and the Spiders, battle each other for the control of all time. At least one other story (“When the Change-Winds Blow”) has appeared in the Change War collections with no snakes or spiders, but it may be in the Change War universe nonetheless.
Change one event in the past and you get a brand new future? Erase the conquests of Alexander by nudging a Neolithic pebble? Extirpate America by pulling up a shoot of Sumerian grain? Brother, that isn’t the way it works at all! The space-time continuum’s built of stubborn stuff and change is anything but a chain-reaction.

Variants

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  1. “Changewar” by Fritz Leiber, Astounding, March 1958.
    2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Fritz Leiber