After being enrolled in the Song Festival, Geronimo Stilton's song, "Welcome to New Mouse City," goes to the top of the charts and makes Geronimo a star, but very few CDs are sold after the festival. Will Geronimo and his detective friend, Hercule Poirat, be able to solve the mystery?

שם הספר
Lost treasure of the emerald eye
Geronimo Stilton: Books 4-6: #4: I'm Too Fond of My Fur; #5: Four Mice Deep in the Jungle; #6: Paws Off, Cheddarface!
Geronimo Stilton: Books 1-3: #1: Lost Treasure of the Emerald Eye; #2: The Curse of the Cheese Pyramid; #3: Cat and Mouse in a Haunted House
Geronimo Stilton: Books 7-9: #7: Red Pizzas for a Blue Count; #8: Attack of the Bandit Cats; #9: A Fabulous Vacation for Geronimo
Lost Treasure of the Emerald Eye (Geronimo Stilton, No. 1)