Have three cards selected (they can be signed), return them individually into the deck, shuffle, and miraculously the four kings turn face up, and between the kings the three selected and signed cards are found.
This effect is possible due to a simple gimmick you can quickly make at home. (No gimmick is included with this download.) There are many more ways to use this gimmick. Peter explains a variety of effects and ways to use it.
1st edition 2022, video 28:21.