Juju is an interesting book written by Murray Leinster. The story is set in Portuguese West Africa and follows a group of Englishmen who are working on a rubber plantation. The men are initially unaware of the presence of a large gorilla that lives in the jungle near the plantation. The gorilla, which is named Juju, is a vindictive creature that has been driven mad by the cruelty of the African natives. Juju begins to terrorize the plantation, killing the workers and destroying the property. The Englishmen are forced to band together to defeat Juju and protect their home. The book is a thrilling adventure story that explores the themes of good versus evil, man versus nature, and the power of revenge. It is a classic example of early science fiction and is still enjoyed by readers today.