The Treason of Isengard is the seventh volume in Christopher Tolkien's History of Middle-earth and the second in his account of the evolution of The Lord of the Rings. The Treason of Isengard continues the account of the creation of The Lord of the Rings started in the earlier volume, The Return of the Shadow. It traces the great expansion of the tale into new lands and peoples south and east of the Misty Mountains: the emergence of Lothlorien, of Ents, of the Riders of Rohan, and of Saruman the White in the fortress of Isengard. The book also contains a full account of the original map which was to be the basis of the emerging geography of Middle-earth. The book is in good condition, with the cover, spine, and pages all intact.