Analyzing old eyewitness reports, Jim McKeague explained how poor, itinerant conjuring troupes could have performed the trick using known magical techniques. If a ball of cord is thrown upwards, one end being retained in the hand, the ball rapidly decreases in size as it rises. As it unwinds completely the illusion of the ball disappearing into the sky is striking, especially if the pale cord is similar in color to any overcast cloud. Before the cord has time to fall the climber leaps up, pretending to climb, but really being lifted by a companion. Skilled acrobats could make this quick "climb" look very effective until the climber's feet are at or even above the lifter's head. Then a noisy distraction from other members of the troupe is the misdirection needed which allows the climber to drop unseen to the ground and hide. This type of "vanishing by misdirection" is reported as having been used very effectively by a performer of the basket trick in the 1870s.