Ru begins his training under Will and Menel. He tells Will that he's eager to learn from him what courage is and what it means to be a warrior, but Will himself is struggling with the meaning of courage as he recalls the Lord of Holly's prophecy.
And the fog is probably 
either a magical barrier
والضباب هو غالباً حاجزٌ سحريّ
Und der Nebel ist entweder eine Barriere
oder ein Vertrag mit den Naturgeistern.
La niebla podría ser una barrera mágica
o un pacto con espíritus de la zona.
La niebla podría ser una barrera mágica
o un pacto con espíritus de la zona.
Le brouillard est soit magique
E la nebbia
E a névoa é provavelmente
uma barreira mágica
А туман — следствие магического барьера