Prince of the Blood Raymond E. Feist 1990
Set twenty years after the events in The Riftwar Saga, Prince of the Blood follows the adventures that erupt when a group of powerful nobles attempt to overthrow the Empress of Kesh, bitterly dividing the court.
In the centre of the conflict are the two princes of Krondor, Borric and Erland. When Borric escapes and makes a desperate journey back tothe court to warn of the traitor's plans, which if they were to succeed, would start a war that would twar the Empire apart.
From the author of the phenomally successful novels in The Riftwar series comes the newly revised tale of swashbuckling adventure in one of the most popular fantasy worlds ever created.