In effect the liquid in the glass visibly diminishes from a glass full, to a fraction of the original contents. This is under your control the entire time. Great for magicians, ventriloquists, puppeteers, comedians, etc.This is VERY easy to learn!
The magician takes a pen and sticks it through the Invisible Zone case. When the case is opened the center of the pen is totally invisible even though the pen is moved back and forth! This one looks totally impossible.
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