Book #3 Genghis Khan

This is the third book I have read on this semster, This book is about the life of Genghis Khan. He born from a small clan and become the most powerful king in Mongol. When Genghis Khan was young he also called Temujin and have a blood brother, Jamuka. Temujin is powerful as his blood brother but a world can't have two king, at the end one of them would be left to rule over all the Mongol tribes. You already know the result because we know Geneghis instead Jamuka. But do you know how Genghis Khan become a powerful ruler? He betray his friend Jamuka and Toghirl. So the theme is in order to be success your goal/dream, you might have to give up something.