The 7D S01 E22 Knick Knack Paddy Whack

The 7D return from the Enchanted Sea with the Pearl of Wisdom (a pearl which can grant anyone wisdom) within a crystal oyster which they give to Queen Delightful. In order to answer the riddle for a witch's contest, Hildy and Grim plan to steal the Peal of Wisdom from Queen Delightful's Knick Knack Room.