The Harmony Stone has been stolen from the Crystal Castle, and without it the Kingdom of Fantasy is vulnerable to an ancient enemy, The Invisible Army; Geronimo, together with Queen Blossom's daughter, Winglet, embarks on a mission to find the ancient crown which will defeat the Invisible Army and restore harmony to the empire--but they must make it back to the Crystal Castle before it is overwhelmed by the enemy
General Note: Translation of: L'impero della fantasia.Geronimo Stilton is a fictitious character."Based on an original idea by Elisabetta Dami"--Title page verso.LSC 19.99