Actually, Bobitron, there's not a whole heck of a lot to add. You've got your boy wandering around Enber nicely.
Usually the barbarian tribes that live in the mountains have no permanent homes because they need to wander for food. But, if there were going to be a place where a tribe or two might build permanent buildings, it would be in northern Enber. Generally in the mountains, there are enough crags and caves for shelter... with some well placed skins, they can keep the weather out nicely. But the northern mountains are a bit flatter and littered with ogres (Who generally live in the caves). As well, the area just south of the rim of mountains (Called Outer Thel'Luthia) is considered the most magical area in Enber. It is filled with all sorts of fey creatures and mystical trees. Quite a creepy place for someone not accustomed to magic.
So, it is conceivable that the tribe could have moved lower down the mountains and settled. Part of settling helps to clear the immediate area of the fey things rather than moving always into unknown mystical dangers. The ogres are generally afraid of the fey magics and don't come down (unless they are REALLY hungry) the mountains. So along that ring is a good place for tribes to settle (I might add that into the novel, actually... I like it)
Why your character would get involved with this is going to need to be a role-playing choice on your part. In his travels he's heard of the dreaded Rox'Voroth of 300 years ago. What actually happened in his death is a mystery. But what you know (what EVERYONE knows) is that over night, on the single, small island on Lake Enber, a dark tower rose. This tower signified the power of the dark wizard and terrified the people. All the heroes of Enber, from all the races, gathered together to assault the tower, lead by a human paladin named Gavin. A hundred adventurers with dozens of ships sailed to the island and started the assault. The adventurers managed to get into the tower somehow, though there is no known entrance. When it was over, only 7 survived and returned.
None of the seven would speak of what actually happened, though several songs have been written about it. Some believe that one of them told the tale to the first songwriter, others say they just made it up. None know for sure but those seven.
Today, all but two of the seven are dead from old age. The two that lived are both elves and nearing their own old age. Kendrian, a priest of Thorus Odara and Tandra'var, a practitioner of a dying order (a monk) are the survivors. But the news of the dragon raiding Thel'Lorean tells of both of them dying to the dragon. It is a great tragedy for all Enber. With this news, missives have been sent all over enber by the request of the human King, Promus of Enberton, for a meeting to discuss what should be done. Representitives from each town, heroes and adventurers are requested.
How it is that Kale (I love the name, btw) choses to get invovled will have to be a choice from you. At that point, we'll figure out how he hooks up with the rest of the group.
That make sense?