It's quite the fanciful story: Nazis buried diamonds and 100 gold bars in a Bavarian town during World War II, in a spot whose location was encoded into an annotated piece of sheet music by Adolf Hitler's private secretary. That score, to Gottfried Federlein's "March Impromptu," was posted online in December by stumped Dutch journalist Karl Hammer, reports der Spiegel. Now, a 51-year-old fellow Dutchman who spent nine months poring over what NBC News describes as "letters, figures, and lyrics" added to the score thinks he has an answer—or, at least, a "very good theory."
Leon Giesen spotted a distinct capital "M," which seemed familiar to him: An image of a Berlin train station had contained the same letter. He now believes the "M" stands for Mittenwald, where Nazi barracks once stood, and that the phrase Enden der Tanz, or "end the dance," refers to one of the rail line's buffer stops, reports the Guardian. If you're doubtful, there's also this: Giesen thinks an added lyric (wo Matthias die Saiten streichelt, "where Matthew plucks strings") refers to 17th-century violin builder Matthias Klotz, who hailed from that same town. Giesen got the go-ahead to drill three holes in Mittenwald, and says his "geophysical survey" revealed an "anomaly" in the earth. Next up: Raise more money for a full excavation, which is no small task. "If there are boxes with valuable items below the surface they could be booby-trapped, so we need to bring in specialists and meet all safety requirements first." (More treasure-related news: Jewels have been found atop the French Alps.)