Chronicles the first Vesper attack on Jan van Eyck's altarpiece at Ghent in the 1600s, then jumps to WWII and young Grace Cahill's desperate bid to save the masterwork from the Nazis.

In 1814, redcoats burned the White House to the ground. In 1889, Harry Houdini discovered a trick that would save his life. In 1955, the U.S. launched the world's first nuclear submarine. And one family pulled the strings behind the scenes at each of these events: the Cahills--the most powerful family the world has ever known. Now the Cahills have opened their vault and dangerous secrets are pouring out. This book contains three of them--three stories...

A brand new adventure from the world of The 39 Clues!

After 500 years, the Cahill family's most dangerous secrets are about to be revealed. Read at your own risk . . . With the British marching on Washington under the command of a Vesper General, it's up to a young Madrigal in 1812 to save a treasure hidden in the White House. However, the enemy will stop at nothing to seize the artifact, even if it means burning the city to the ground.