Hello, mouse friends! Join me, Geronimo Stilton, in solving these whisker-licking-good mysteries. Find clues with me as you read. Together we'll be super-sneaky investigators! A new Superstore had opened in New Mouse City, and Benjamin and I were eager to go shopping. But once we got insde, we had a sudden urge to dance like crazy - and buy everything in sight! All the other shoppers were doing the same thing. Could we figure out what was going on before it was too late.