Theren opens his eyes from his meditation upon hearing the call to arms.  For a moment he considers ignoring it, since this seems like karmic justice on the would be new "owner" of this town.  However, he hears his new companions preparing themselves, and he also considers the fact that the orcs will likely ravage what little is left of this town leaving any survivors completely homeless.  As such, he uncrosses his legs and rises from where he was sitting on the bed.  Donning his clothes and weapons, he leaves the room to face this new threat.