C. S. Forester 
Gun [EPUB ebook] 

A classic novel about the Peninsular War from the celebrated author of the HORNBLOWER series Abandoned by the retreating Spanish army during the Peninsular War, the gun is an eighteen pounder bronze cannon, thirteen feet long, weighing three tons. When a group of Spanish partisans come across it two years later they see in it a chance for victory against the French — but first they must haul it across the mountains with nothing but a handful of donkeys and half-starved oxen. On its epic journey the cannon begins to gain almost mystical significance. For, with the gun, they are no longer a band of Spanish irregulars, they are an army able to take on the cream of Napoleon’s troops…