Hegira — Greg Bear

The planet Hegira is the universe’s melting pot. Hundreds of tribes in dozens of cities intermingle in the vast uncharted territory. The only thing holding the people together are the massive Obelisks, the chronicles of all the truths and falsehoods each tribe has brought to Hegira. Young Bar-Woten is in search of knowledge and he knows the key to the truth about his homeland is contained in the writings of the Obelisks. With his fellow companions, Bar-Woten must travel through Hegira’s exotic cities to discover the lies within the words of thousands.