"Thompson's Cat" by Robert Moore Williams is a science fiction novel written in the early 1950s, reflecting the era's fascination with space exploration and the unknown. The book revolves around the mysterious circumstances surrounding an abandoned planet and the crew of a space exploration ship who unwittingly encounter a lethal infection. The narrative combines themes of survival, the unpredictability of the cosmos, and the unassuming bravery of an unexpected ally—a cat named Buster. In this engaging tale, Captain Thompson and his crew land on a deserted world, only to discover the remnants of a civilization wiped out by an unknown menace. Amidst their investigation, crew member Kurkil is bitten by a mysterious insect, leading to a fatal transformation. As the infection spreads among the crew, tensions rise and panic sets in, forcing Thompson to take drastic measures to prevent the virus’s catastrophic consequences. Ultimately, it is the ship's cat, Buster, who uncovers the tiny, invisible carrier of the infection, turning him into a pivotal and heroic figure in a desperate bid for survival. The story highlights both human vulnerability and the unexpected roles that animals can play in times of crisis. (This is an automatically generated summary.)