Clark just listened to Avery and Richardson, had some apple extract and continued listening to the both of them.  Then he saw that avery lost a broadsword in the ceiling.  He went to retrieve it and he saw some other dude take it and go into the Forest. 

He turned back to his companions and said, "I'll get your sword back avery.  The adventure will have to wait until I return."  He stated to them both.  Then he followed after Thasseldar and upon catching up to him, he called after him, "What are you doing with that sword?  It is not yours."