Theme of The Ranger's Apprentice

      While I was reading The Ruins of Gorlon, the first book of The Ranger's Apprentice series, I noticed that there wasn't very much of a moral to the story. Overall, I thought the book predominantly was written for entertainment, and not so much for any other reason. But I thought that there was still a theme to the story.

     Near the end of the book, Will's master, Halt, was in deep trouble and had already done everything he could to stay alive. He was being chased a troll-like creatures, the Karkala. All who have ever fought such monsters say they literally emanate fear, and if you look at one of them in the eye, you would be instantly paralyzed  by fear.
   
     Will and his company of 2 other knights had finally found where the Kalkara had chased Halt to, and could see one of the Kalkara in the open. The two knights had started to engage this humongous monster in combat, when Will remembered something he had heard, that they were vulnerable to fire. He reacted quickly, because even two fully armored knights didn't stand up to the Kalkara. He pulled out one of his fire arrows, lit it and aimed for the Kalkara. Right when it touched it, it spread like it had touched gasoline, and it burned up within a matter of seconds. His bravery and quick thinking had saved his master and the two knights.