Résumé
"Muskrat City is under attack again. The Sewer Rats have created a weather-changing device that unleashes huge storms, which will likely flood the entire city! The rodents of Muskrat City have one hope: the Heromice. Can Geronimo Superstilton, Swiftpaws and Lady Wonderwhiskers save the city?"--Back cover.
Avec
Elisabetta Dami