OK, so the plot of my mystery (set in modern times) revolves around an old WWI sword that is claimed to have been a gift from Kaiser Wilhelm II himself to one of his closest staff members (who is the ancestor of one of my main characters). The sword is stolen and while I can easily get the motive of the main characters, I don't really understand two things: (1) From a historical perspective, is it accurate to say that the Kaiser himself would actually give one of his own men a sword? And for that man to say, "This is the Kaiser's sword!" Wouldn't a medal be more in like with what the Kaiser would have given in a ceremony? Wouldn't it be easier just to have the sword simply belong to the soldier initially? (2) Why would the antagonist steal the sword? What exactly would they do with it? The whole plot basically hangs on the descendant of the guy who got the sword from the Kaiser going, "I've got to get my family sword back before something bad happens to it!" I suppose motivation is enough, but I wonder why the antagonists would want the sword. Sell it? If so, for what? Why would they steal what's basically, to them, garbage and not something useful? I'm just not sure if a plot about a guy trying to get his family's historical sword back is enough to last an entire story.