Harry Houdini is the 9th card of the 39 Clues cards.
"Eric Weiss, better known as Harry Houdini, was one of the most skilful operatives the Janus branch ever produced. Like so many Janus, Houdini was a natural showman. But rumor has it that his escape skills were developed hunting the 39 Clues, and that his traveling shows and exhibitions were nothing but a useful cover for illegal activities. Harry Houdini died on Halloween in 1926, supposedly of appendicitis, and was buried in Queens, New York. However, a Houdini relative, George Hardeen, believes Houdini was poisoned. Hardeen has requested that Houdini's body be dug up to test this theory. Cahills around the world are wondering . . . could it be that the Lucians got to Houdini?"