This treatise is a detailed exploration of a glorified location-divination, framed by a whimsical conceit - namely that an inanimate object - a playing card - is the supposed agency that makes the entire trick work. In this regard it was an effort to upgrade an essentially puerile divination effect.

Here is the basic approach or plot: The way the performer learns the identity of a freely selected card is apparently due to enlisting the assistance of another playing card (usually a Queen), which whispers the name of the selection to the magician. The magician then acts as the Queen's proxy and audibly names the selection.