Ranger's Apprentice: Erak's Ransom, by John Flanagan, presents Will's final test to become a full fledged Ranger in 373 pages. After Erak, Oberjarl of the Skandians is captured, Will, Horace, Halt, and the king's daughter, Cassandra, must travel to Arridia to ransom him. But after Erak is captured by a band of pitiless desert nomads, the foursome must fight him out. Will they succeed? This book is a great read.