The redcoat chase : the 39 Clues: The Cahill Files Series, Book 3

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.