The true reasons for their invasion remains a mystery, though it is mentioned that they may have been looking for a new Dragonborn to serve or hunting down the dragons that escaped their continent. They later formed the order that is now known as the Blades. It is said that after hearing the Emperor's 'voice' or Dragon Shout, the Akaviri forces knelt and swore fealty to him, whom they called Dragonborn. After the Akaviri forces had fought through Skyrim and reached the Pale Pass, they were met by Reman Cyrodiil and his forces. The story of the Blades begins with the Akaviri invasion during the First Era.