Jakahn said that enemies turned up and you killed the approaching Asmodians. You found the missing part of the journal that you were looking for last time among the defeated Asmodians. It provided a complete record when pieced together. Jakahn said it might contain information about Kahrun's whereabouts, and you should bring it with you as it might help the Elyos. And you should inform the Elyos of Kahrun's disappearance. As you headed south you came across Maiv from the observation post. Maiv said that this location is the last base in North Katalam, and that you should proceed via the Ramparts to the observation post in South Katalam. When you told Centurion Jin what had happened, and handed him the book, he said it was sure to be a great help in finding out more about Id, and that he would send the book and the report about Kahrun to the Katalam Command Headquarters.