Scholastic Geronimo Stilton MiceKings The Helmet Hold Up

Oh, no! One of the special Miceking helmets in mice king leader Sven the Shouter's private collection has been stolen! Could it have been taken by the vilekings - the rival mouse clan? The Micekings journey to the vilekings' village to find out who is behind the theft! And while they're there, the dragons attack! Can all the mice work together to save their fur