Conversation so far:
What can you tell me about B. H. Robert's career as a writer?
B. H. Roberts wrote a novel Corianton (1889), published serially in The Contributor, and based on the story of Corianton, the son of Alma as told in the Book of Mormon
What were the titles of B.H. Roberts works?
Comprehensive History of the Church of Jesus Christ of Latter-day Saints: Century I and Corianton was written by B. H Roberts

Question: What was his most successful work?
Self-contained rewrite: What was B. H. Roberts' most successful work?