The disappearing-pig trick was the grand finale of the stage magic show that Willow Ufgood performed 1342 years after the Nelwyn Arrival Day, during the Planting Festival at his village. It made it appear that Ufgood, with a simple flourish of a cloak, could make a small pig vanish into thin air in front of a crowd. Although the trick initially impressed the crowd, the applause turned to hoots of derision when the piglet lept out of a secret pocket in Ufgood's cloak.
Ufgood later used that trick in Queen Bavmorda's conjuring room to make it look like he had sent Elora Danan to a realm where evil could not touch her. Although Danan had not actually disappeared, the trick destabilized Bavmorda, who disrupted her altar and accidentally launched her evil ritual upon herself.