The two jumbo cards are displayed in a fan. One is the Queen of Spades and the other is the Seven of Hearts. The Queen of Spades has a miniature Queen of Spades card clipped to it. The cards are turned face down and the audience is asked to guess which card is the Queen of Spades.  Of course they select the card with the miniature card attached.

But when the remaining unclipped card is turned up that proves to be the Queen of Spades!

Next, the other card, with the miniature card clipped to it, is turned up to show it is the Seven of Hearts, and the miniature card attached to it has now changed to match.  No trace of the miniature ten of hearts is found anywhere!

This is a really nice little mystery that you'll love to perform. Comes with everything needed plus full instructions.