Books like The Warrior's Apprentice

Between the seemingly impossible tasks of living up to his warrior-father's legend and surmounting his own physical limitations, Miles Vorkosigan faces some truly daunting challenges. Shortly after his arrival on Beta Colony, Miles unexpectedly finds himself the owner of an obsolete freighter and in more debt than he ever thought possible. Propelled by his manic "forward momentum," the ever-inventive Miles creates a new identity for himself as the commander of his own mercenary fleet to obtain a lucrative cargo; a shipment of weapons destined for a dangerous warzone.

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