The Incans were fighting in their home territory with a much larger army and neither side outmatched each other in leadership, however the Spaniards guns helped annihilate the Incan forces.
The Spaniards who came to New World to conquer Inca had the advantage of guns and cannon in warfare which killed many of the Native American. The Spaniards were soldiers, mercenaries, and adventurers, who knew about fighting, which played an advance role in defeating the Incas larger forces. The weapons of Incas was dated back to the bronze age, used wooden clubs, bows and arrows, slings, axes.
We require the some more information regarding the very specific novel( what ever the genre may be). As, there should be a given paragraph or some phrases that are required to add more value to the given answer which is desired by the student in a given manner. As each of the plot relation to the possible theme of the unknown novel will be easy to be evaluated.