Probably the most absurd book I've ever read, Saunders' The Brief and Frightening Reign of Phil is the story of the countries Inner and Outer Horner, which former is beautiful but so small that only one of its seven citizens can occupy it at any given time, which forces the latter to give up some of its abundant land as a temporary holding ground for the Inner Horner "refugees", if you will. When a smitten, jealous, arrogant Outer Hornerite named Phil decides to levy immigration taxes upon the six Inner Hornerites living in Outer Horner's Short Term Residency Zone--which is a misnomer, as the Inner Hornerites spend 6/7ths of their life in the STRZ--the Outer Hornerites declare that the Inner Hornerites have declared war on them (the Outer Hornerites).
Also, did I mention that Phil had been in love with an Inner Hornerite named Carol, and had "spent many hours casually circling Inner Horner, hoping to catch her eye, inflating and deflating his central bladder in order to look more manly and attractive" ? And that when Carol married fellow Inner Hornerite Cal, "a gigantic belt buckle with a blue dot affixed to it, if a gigantic belt buckle with a blue dot affixed to it had been stapled to a tuna fish can", Phil had stood across the border, "passing bits of machine oil from his lower strata"?
The citizens of Inner and Outer Horner are silly, anthropomorphic, Frankensteinian, but somehow also intensely and innocently human. The Brief and Frightening Reign of Phil is an allegory on power and nationality, plus also use of propaganda and preemptive war, disguised as a story almost childish in its simplicity and imagination.