The Great Brain is a series of eight children's books written by John D. Fitzgerald. Taking place in the fictional town of Adenville, Utah, near the beginning of the 20th century, the books follow the various adventures of the middle Fitzgerald children. List of books in the series: Related books (these books share the same setting and were published before the Great Brain books. The Great Brain series grew out of these novels, as a sequel series focusing on the children): * Papa Married a Mormon * Mama's Boarding House