Summer Reading for Middle School: John Flanagan

When fifteen-year-old Will is rejected by battleschool, he becomes the reluctant apprentice to the mysterious Ranger Halt, and winds up protecting the kingdom from danger.

Will and his friend Horace are chosen by the Rangers to do battle with the evil warlord Morgarath; but Morgarath and his legions make it over the once impassible eastern mountains with plans to to ambush the king's army.