Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Delightfully Humorous Science-Fiction

Imagine this: your great-grandfather was an astronaut who brought a collie-puppy-sized alien home from one of his missions as a family pet. Lummox, your pet, grows larger with everything he eats. By the time you are a teenager (and Lummox has started feasting on dilapidated cars), Lummox is the size of a small elephant. What do you do when the townspeople start rioting over your pet - and a delegation of Lummox's species comes to Earth to bring him home?This is the premise of Heinlein's "The Star Beast," a humorous and comforting science fiction book. The cheerful resilience of John Thomas and his pet Lummox provide humor even in the book's darkest moments (which aren't very dark at all).