A mentalism effect that can be performed with a borrowed deck. It has a SILENT ending that they never see coming.
Allow the spectator to shuffle the deck as much as they'd like. They then select two cards. Amazingly, the values of those two cards add up to a number you previously wrote as a prediction.
But there's more! The spectator selects one of the two cards, and its suit is noted. Combined with the total arrived at earlier, a new card is formed by that number and suit. When the card box is opened, only ONE card is inside - the very card that matches the newly formed number and suit!
THIS will blow your audience away, and it's easy to do!
Download the video and start performing this convincing feat of mentalism!