He raises a very bushy eyebrow at Rodric as he glares at him. "You did your duty, Sir Rodric, as I have done mine - nothing more. The protection I granted you was necessary. I needed you to stay alive long enough to keep the guards off me so I could battled the witch. That would not have been possible had I not woven a protection spell around you. I do not want your thanks!" He stops and glares at each of you to underline his words. "Everything I do is out of love for, and duty to, Britain and her people. You remember that! Your protection served Britain so I granted it. Had your deaths served Britain better, I would have slit your throats myself!"
He walks on for a few steps then stops with a sigh. "Your words were kindly meant, Sir Rodric. Forgive me my black moods - I have much on my mind and find idle prattle distracting. I did my duty to Britain, as did you. Thanks are not required, nor will they be offered. But your intention does you credit."
He walks on for few steps. "There is a pattern to the worlds, my young companions. Twice now Rodric and Cedwyn have been where and when I needed them. And you, Arne and Valka, have also appeared exactly where and when you were needed, having travelled a long way to reach this exact spot at this exact time."
He looks the four of you over one at a time. You have the distinct impression he is looking through you somehow.
"There are no accidents," he says, more to himself than you. Then with an angry grunt, he turns and walks on with long, angry strides, as if he would punish the ground for some offence.
A dozen strides later, the mist is scattered by a sudden breeze, and you find yourself standing beside your horses and a very surprised Haydn sitting astride his mount.
Merlin turns to the two northmen. "Arne and Valka, you may find shelter for your people a little north at the ancient ruins of Broad. If you would take my advice, you will press on to that site before camping tonight. Your people may stay there while you make contact with the Earl's steward and seek permission to remain in these lands. Mind you this though! Do not let any of your people disturb the standing stones! Not a one! Even if that old crone of a priestess insists, deny her!"
[Pausing here for any reactions / comments / questions. He'll answer questions, but very clearly has a powerful desire to be immediately somewhere else.]