The signed card to impossible location plot is a true classic of magic for good reason. If you've ever performed this gem you'll understand why. With "In Case of Emergency", you introduce a miniature fire alarm as a "back up in case you mess up your trick."
This little fire alarm stays in full view the entire time. At the end of the routine, the spectator's sign card vanishes from the deck. You ask them to pull the fire alarm revealing a folded card inside the box, when they unfold the card, it's their signed card.
"In Case of Emergency" is so much more than a simple card switching device though. You can switch out billets, bills, cards, or any other paper product small enough to fit inside the box.
Each set comes with both the carefully-crafted gimmick and more than 1.5 hours of in-depth teaching that includes 4 different routines from a no sleight of hand beginner version to a show-stopping advanced version. You'll even get a detailed explanation of the mercury card fold (which is only required for the advanced version).