For those that don't know the original illusion, Houdini was chained in a burlap sack, then locked in a trunk. His assistant would shut the trunk, then hold up a curtain for 3 seconds. When he dropped it, Houdini was there and the assistant was in the trunk, chained in the sack... it was an amazing trick!
Criss Angel does it with nothing but a pyrotechnic! There is no curtain- a giant blast of fire come up, and it's him standing there instead of the assistant! One of the coolest illusions ever! I love it when people take a classic illusion (even one that everyone knows the secret to) and update it or add their own twist.
whats the secret?
"Why do you need so many snakes?"
"Why do you need so many shoes?"