Ranger's Apprentice: The Ruins of Gorlan Book One (The Ruins of Gorlan, Book One)

The Rangers, with their shadowy ways, have always made him nervous. And now 15 year old Will has been chosen as a Ranger's apprentice. But what he doesn't yet realize is that the Rangers are the protectors of the kingdom who will fight the battles before the battles reach the people. And there is a large battle brewing. The exiled Morgarath, Lord of the Mountains of Rain and Night, is gathering his forces for an attack on the kingdom. The time he will not be denied.