Andreg is concerned about the Orcs which have breached the borders of Bree-land from the North Downs.
'Saeradan must know that though our efforts here are successful, we cannot know the breadth of the invasion southwards. He must also know that our brethren to the north have been unable to prevent the spread of the Orc-tribes.
'Make your way south along the Greenway to his cabin and bring him these tidings.'
Saeradan is at his cabin, south of the Old Greenway Fort.
Andreg told you to speak with Saeradan regarding the spread of the Orcs from the North Downs.