No Time to Lose Geronimo Stilton Journey Through Time Series, Book 5

New Mouse City is in danger! There is only one way to bring harmony back to the island. Geronimo and friends must travel back in time to retrieve King Solomon's Ring. Along the way Geronimo visits Napoleon, the Vikings, and the ancient Cretans! Professor von Volt plans to send Geronimo and his time traveling friends back to King Solomon's court to borrow a ring that supposedly will restore harmony to Mouse Island and balance the environment--but they soon find themselves taking an unplanned detour through Napoleon's court, a Viking village, and the Minotaur's labyrinth, before finally arriving before the wise King.