Mysterious iNK by Arnel Renegado
Have your spectator select a card and have it signed on the front and back. Place it back on the deck and mark it with a dot. Mysteriously, you are able to slide the dot over to the corner! With a shake, it visually jumps to another corner. With another magical shake, the dot vanishes and can reappear anywhere you want it -- on your palm, card or table! Mysterious iNk is now ready to learn.

Download the video and learn this effect.