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K is for Knowledge is the eleventh episode of season 2, and the thirty-seventh episode overall of the TV series.


W.I.T.C.H. gained new knowledge of their sorceress foe Nerissa, a former Guardian and one-time holder of the Heart of Kandrakar. They also gained knowledge from the Oracle about the old Guardians, who they were and what happened to Cassidy, the former Guardian of water. Meanwhile Will discovered her lightning and animating of objects is called quintessence. Nerissa targeted the Guardians in Meridian and they fought. Nerissa useds a "divide and conquer" strategy to get to the Guardians, by going after Taranee.

At school Taranee got into trouble when she was caught with Uriah and his gang including Nigel. Afterwards Uriah broke the statue of "Old Man Sheffield".

Also Taranee decided to turn herself into a "bad girl" and go out against her mother's will by sneaking out to see her boyfriend Nigel. In the end, Nigel liked her better the way she is and Taranee had to face the consequences when she was discovered seeking home by her mother.

Release notes

  • In the Latin American Spanish dub,[which?] the episode name was changed to "K is for K.C.H.Y.N.".[citation needed]

Possible mistakes

  • In the flashback scene, when the Oracle was talking about how he gave the Heart of Kandrakar to Cassidy, she was shown holding the Heart of Meridian instead.

Behind the scenes


  • Every second-season episode has a clear focus on one of the five main characters. This episode is one of 4 in the season to focus on Taranee Cook.
  • Cassidy, the former Guardian of water, and Kadma, the former Guardian of earth, were introduced in the backstory. Halinor was the previous Guardian of fire and Yan Lin, of course, the previous Guardian of air. Their names, together with Nerissa's, formed the acronym "C.H.Y.K.N.".
  • Nerissa's name and her history as former leader of the previous five Guardians of the Veil and keeper of the mystical Heart of Kandrakar were revealed.
  • Will finally learned about her own elemental power: quintessence, the ability to generate and control whitish-blue lightning to electrify one's enemies, and bring inanimate objects to life by imbuing them with pure life-force energy by saying "quintessence" aloud.