Here's an amazingly versatile mindreading effect that will astound your audience. 

You show your spectator some cards with different numbers printed on both sides. 

None of the numbers are repeated and nothing is hidden or changed; the same cards are used from start to finish. 

You ask them to shuffle and place down the cards in a random face up/down combination. 

At this point you demonstrate that, had they turned over the cards in a different combination, it would have generated a completely different number. 

They are free to change their minds as many times as they like until they settle on a combination that they are happy with. 

The numbers on each card are totaled up - you then pick up your wallet that has been on the table the whole time and remove an envelope. Inside that envelope is a card with a number on it that matches the generated number. 

Within minutes of opening Out of the Blue, you will be able to perform amazing self-working predictions. 

The custom printed cards provided do all the work for you with a method that is so diabolically clever and easy that you will smile every time you perform this amazing effect!