Geronimo's sister Thea narrates this adventure packed with mystery and friendship!

The Thea Sisters are headed to Italy for a ballet competition! But the mouselets aren't just there to dance -- they are there to investigate. A group is plotting to rig the prestigious contest, and the future of the mouselets' new friend -- an aspiring ballerina -- is at stake! Can the Thea Sisters stop this scheme before it's too late?