With her father still missing, and no news or ransom demands, Kat Makris is sweating under the blistering Greek sun. But when her grandmother receives a mysterious puzzle box from one of the Family's most questionable allies, Kat's not even remotely prepared for the worst. Kat's quest to find her father takes her from the vertigo-inducing heights of Meteora to Greece's pebbled beaches, with a growing number of assassins on her tail. Kat's presence in Greece means times are a-changing, and Grandma's enemies hate change-unless it turns a tidy profit. The last thing they want is an unknown quantity shoehorned into Grandma's tattered, black slippers. As an all-round decent person, one without a rap sheet, it's not what Kat wants, either. But Grandma has plans ...