On the Fourth Planet is a science fiction novella written by Jesse F. Bone and first published in 1880. The story follows Ul Kworn, a member of a declining alien race, as he confronts a mysterious metallic structure that obstructs his access to food, symbolizing a barrier to survival. The narrative explores themes of societal change and the struggle for progress within his community, culminating in a transformative climax that hints at the potential for renewal and growth in his civilization.
