Objective: To effectuate two transformations with the face card of the deck.
The basic Erdnase Change is difficult to surpass. This technique was accidentally discovered when experimenting with a Marlovian finesse. For example, delaying the change by making a few, quick preliminary passes with your right hand adds to the deceptiveness of the transformation. During a practice session, my right hand stole an extra card during a pass. This led to further experimentation, resulting in this technique. (Marlo performed a multiple Erdnasetype Change for a number of years, but his technique was never published.)
Hold the deck face up in your left hand (Mechanic's Grip). For explanatory purposes, suppose that the order of the cards from the face is: 10S - QD - 10D. Openly display the 10S at the face.
Cover the deck with your right hand. (Fig. 1) Notice that it is held perfectly flat with your fingers together. Contact the upper left and right corners of the 10S with your right first and fourth fingertips . In this starting position, the entire face of the 10S is covered.
Ask the spectator to name the card just covered by your right hand. When he does, slightly lower both hands, then imperceptibly move the 10S forward into an outjogged position for about a half inch—just enough to expose the QD at the inner end. The fleshy pads of your right hand just below your fingers gets a "bite" on the exposed QD.
Move your right hand backwards, ostensibly to confirm the named 10S on the face. Keep your right hand flattened when it is slid backwards. The QD immediately below the 10S will be dragged further backwards until it clears the inner end of the 10S. (Fig. 2,an exposed view of the dragged QD just prior to its clearance.) Your right hand covers this condition. As soon as the QD has cleared, slide your right hand forward to cover the 10S again. This time it keeps the freed QD in a flat palm, but do not try to hold the QD in your palm. Because your right hand moves closely against the deck, this contact keeps the Qd in proper palm position. (Fig. 3) Your right first and fourth fingertips further steady and control the static card. No gripping is necessary.
Keep sliding your flat right hand forward until the kept QD is aligned with the out-jogged 10S, then slightly curl your right fingers inwards as you hug both cards. This causes the 10S and QD to be gripped against your right palm Both cards, while remaining minutely separated, will bend in a convex manner into your palm.
Immediately slide your right hand to the right. (Fig. 4, an exposed view from the left.) This lateral movement should be about half the width of a card. This distance clearly exposes the 10D. This is the first transformation.
As though changing your mind, slide your flat right hand back to the left. Leave both palmed cards flush on the deck, then move to the right again to reveal the QD on the face. This is the second, surprising transformation. The entire action should be graceful and fluid.
March - 1978
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