King Episode 12 Down in the Dark with the Yu Yus Episode Title:Down in the Dark with the Yu Yus.Episode Description: While doing some plumbing, Russel and his friends are sucked down to Under Under where the crown is eaten by a Slyther. They befriend her owner Hugh the Yu-Yu, who is living under a giant stalactite that is poised to fall at any moment. Despite Russel's insistence, Hugh refuses to leave since his Fuzzy Dice told him to stay.