SPIRIT Glass A most astounding eerie manifestation .. A round glass disk is shown . A playing card is selected from a deck of cards. The spectator thinks of the card and then breathes onto the crystal. The image of the selected card appears on the surface of the glass!,.. then it slowly fades. … Nothing is visible on the glass, yet the eerie specter can appear at will. Can be repeated with another card. This glass is a double image(two different cards appear) glass where magician...