De Ruïnes Van Gorlan by John Flanagan

A war orphan named Will is apprenticed to the secretive Ranger corps under the stern Halt, where he learns stealth, tracking and survival skills; when signs of a new, deadly enemy and political treachery threaten the kingdom, Will and his small circle of friends must race to uncover the plot and stop the danger, testing his courage, loyalty and ingenuity as he grows into his role.

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