No-good

• Bavarian river
• Simple code that uses a half-alphabet shift and that's the key to this puzzle's theme

Wikipedia Word definitions in Wikipedia
Rott may refer to: Rott (river) , a tributary of the Inn in Bavaria, Germany Rott am Inn , Bavaria Rott, Landsberg , Bavaria Rott, Rhineland-Palatinate Rott, Bas-Rhin , a commune in Alsace, France Rott, Vaals , a village in the municipality of Vaals, the ...