Using a mysterious wardrobe that allows them to travel through time, two eleven-year-olds, Federico a boy from the Italian Renaissance and Bee a girl from present-day New Jersey, work together to prevent the bickering between two great artists from changing the future.

Two historical mysteries starring Lady Grace in one special volume! In the Edgar-nominated Assassin, oBetrayal, life as a stowaway on board an Elizabethan galleon—it's no place for a lady! But when her fellow Maid of Honor disappears with a dashing sea captain, Lady Grace knows she just has to investigate.