Legend is the first book by David Gemmell in what is known as the Drenai Saga. The story of this book is the drenai are under attack by people from the desert known as the the Nadir. As people gather to defend the wall from attack and await the hero, Druss the Legend. Intermixed with the story of war are many smaller stories about various people manning the wall along with plenty of back story for the world as a whole. You eventually find out that the Nadir are far from evil and actually are victims of many raids by the Drenai as well as other countries and powers. See the story with in this book actually builds for what will become an entire series based around many people and countries and in different time periods within the same world. You can actually read any of the Drenai saga books in any order you want,but I would recommend this one first. As always thanks for reading, and may the gaming gods bring you glory.