Prince Caspian, by C.S. Lewis, 216 (times 2) pages
Imagine fighting a strong and evil king. In C.S. Lewis's Prince Caspian, that is the situation that Prince Caspian is facing. A magical horn calls for help, and Edmund, Lucy, Susan, and Peter are drawn back to Narnia where they meet a dwarf who tells them how humans from Telmarine have taken over and wiped out almost all the original Narnian creatures. It was Prince Caspian that blew through the horn since he and the rest of the old Narnians needed help to conquer the Telmarines. After the group joins the old Narnians, they have victory over the Telmarines. Throughout the story, Prince Caspian shows perseverance and courage. If I were Prince Caspian, I would have blown through the magical horn earlier.