Harry Houdini, the legendary illusionist and escape artist, died in 1926 on Halloween. Even in death, he staged one final “trick.” His will left his estate to his wife, Bess, but with a very peculiar stipulation. Before he died, Houdini and Bess made a pact: whoever died first would attempt to communicate from the afterlife using a secret code only they knew. If Houdini could “escape” death, he would send the code back to her at a séance. For ten years after his death, Bess held a séance every H