Nick Trost published routines for many ingenious packet tricks playable with standard cards, but he
also published a number of "fun" effects with customized gaffs. "The Unknown Card" was one of these
marketed effects. It was at one time published by L&L Publishing as part of a collection of 8 such
Nick Trost packet tricks, all of which are fun and easy to do. The moment where the 10s and 4s are
shown to have vanished creates a real strong reaction, and while the need to "pocket" the Unknown
Card is an inherent weakness in the effect, the final reveal of The Unknown Card is an amusing
kicker that generates some smiles. It's very easy to learn and perform, so you can put all the
energy into making a good presentation. I've had good results and a lot of fun with this beauty. -
BoardGameGeek reviewer EndersGame