During the second season of W.I.T.C.H. ,episode "U is for Undivided", the W.I.T.C.H. learn that Lillian is the Heart Of Earth. After an argument with Cornelia, her powers are discovered when she wishes her cat, Napoleon, to talk. Soon afterwards, Napoleon goes to Cornelia where he tells her that Lillian has got "something special". While in Kandrakar, the W.I.T.C.H. is given knowledge from Luba that Lillian is the Heart Of Earth and that Napoleon is her familiar. Luba then informs Cornelia on how Nerissa shall try to befriend Lillian, like she did with Elyon, for her power. Cornelia then demands to be taken home as no one is allowed to mess (let alone harm) her little sister but herself. As Cornelia tells Lillian a bedtime story involving a princess named Lillian, an evil sorceress named Nerissa and the princess's protective four fairies, Lillian unknowingly uses her powers to turn the story into reality. This event really plays against the W.I.T.C.H. so Cornelia tells Lillian to transfer her powers to Matt, Mr Huggles and Napoleon so that they can protect her as knights. While still believing it's pretend, Lillian grabs a toy wand and knights Matt, Mr Huggles and Napoleon with her powers and soon they become her Regents Of Earth. This leaves Nerissa and company to flee as they are on the verge of defeat.