A unique handling for the "Professor's Nightmare" Rope Routine

The magician cuts a length of rope into three pieces of different lengths; small, medium, and long. The three pieces are stretched until they appear to be all the same length. The three pieces of rope are then tied together. The knots vanish and apparently the rope is fully restored.

At this point you have performed a pretty standard rope trick. But wait... here comes the incredible finale!

One knot is magically thrown back onto the rope, then jumps away leaving the rope completely re-stored... and it can be tossed to the audience!