This strip was originally published in the newspapers on March 3, 1991.
Spaceman Spiff cruises over the desolate dunes of an uncharted planet. There is no vegetation. Millions of years of harsh exposure without an atmosphere has swept the surface clean. Crossing a rift, the rocks abruptly change color. A huge mountain rises out of the plain. Our hero pulls up. Spiff discovers it's not a mountain at all. The whole landscape is bedding for a horrendous monster. Dad sleepily looks to see what time it is. Calvin, next to Dad in bed, says the creature appears hostile. Our hero readies a hydro bomb. Calvin has a glass of water poised to douse Dad.
This strip was also published in the following book:
Attack of the Deranged Mutant Killer Monster Snow Goons on page 109
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