The 39 clues, Cahill files. [2], Spymasters
(Book)

Titles originally published separately as ebooks by Scholastic in 2012.

"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 that will change history as we know it forever. Flee alongside a young Cahill as Washington burns, unlock Houdini's magic, and stow away with young Fiske Cahill on a desperate mission that could cost him his life."--P. [4] of cover.