The Great Brain by John D. Fitzergerald is about three brothers. One of the brothers is amazingly smart. In this book it talks about the second brother’s great brain and how he uses it. This story takes place in Adenvile, Utah 1886. Things get complicated when the second brother Tom uses his great brain in mischievous ways. In the end he decides to be nicer. This is a great book and I give it 9 out of 10 stars. I liked everything in the book besides one thing...The chapters were way too long!!! The thing I will remember most in this book is Tom’s great brain.