joins his small fledgling tribe with Toghrul's, and leads a joint army to advance on the Tartars. It is in the following battle that Temujin begins to show outstanding tactical abilities, as the Mongols ease to victory. Upon interrogating a Tartar prisoner, Temujin learns that the leader of the Olkhunut conspired with the Chin to lead the Tartar assassins to his father. He also learns that a massive Tartar army is advancing into Mongol lands. Temujin returns to the Kerait, then travels to the Olkhunut tribe, where he murders the khan in his ger and assumes leadership of the tribe, and takes them back to join the Kerait. The Mongol alliance prepares for battle, when they are joined by the Wolves. Temujin and Eeluk agree to settle their feud upon victory over the Tartars. Under Temujin's faultless leadership and strategy, the Tartar army is crushed. As the battle ends, Temujin and Eeluk fight, with Temujin emerging victorious. He claims leadership of the Wolves and takes the warriors back to the Kerait. Fearing an inevitable challenge to his leadership, Toghrul sends assassins to Temujin's ger. The attempt is unsuccessful, and Toghrul is banished out of the unified tribe. Temujin proclaims himself khan of all Mongol tribes and bestows the name Genghis upon himself. Historical accuracy The source material for the book is The Secret History of the Mongols. As with the Emperor series before it, Iggulden sometimes strays from historical sources for the purpose of storytelling. Some of the differences are described in an author's note at the end of the book. In addition to differences to some names of characters and tribes, some major inaccuracies include: Borte was captured by the Merkit tribe, not the Tartars; and she was held captive for several months, rather than a few weeks; Temujin's childhood enslavement by the Ta'yichiut, also lasting several months, is not described; however, some elements of his escape (being liberated by a sympathetic member of the capturing tribe, but then returning to their home to hide) is incorporated into the fictional account of his capture by the "Wolves"; Temujin's childhood friend, blood-brother, and major rival Jamuka is excluded from the story; the relationship between Temujin and Toghrul is simplified: it is not mentioned that he and Yesugei were Anda and the omission of the influence Toghrul's son Senggum had on their relationship; and the influence of the Chin emissary is