"Rough Beast" by Roger D. Aycock is a science fiction novella written in the early 1960s. The story explores a harrowing encounter between an alien creature, the Morid, that escapes from a Galactic Federation ship and crash-lands on Earth. As the narrative unfolds, it examines themes of intelligence, survival, and the consequences of human and extraneous alien interactions. The plot centers around the Morid's arrival on a secluded key in the Florida Keys and its instinctual hunt for prey, which introduces chaos into the unsuspecting environment. Characters like Ellis, a Telethink operator, and the hermit Charlie Trask find themselves embroiled in a desperate attempt to survive as the Federation scrambles to understand and contain the escaped creature. Unknown to them, the Morid is merely a tiny and ruthless predator compared to their human size. As the story reaches its climax, unexpected turns reveal the true nature of the beings involved, emphasizing the relativity of size and power in the universe, culminating in a humorous yet poignant realization of humanity's place within a vast cosmic hierarchy. (This is an automatically generated summary.)