Kandrakar finally elected its newest Oracle - the sly and mysterious Endarno! The W.I.T.C.H. girls didn't feel right about it, especially when Endarno kept expressing his distrust and dislike for the Guardians, and was secretly planning to replace them! Meanwhile, a crystal butterfly visited Heatherfield and dropped by the Hale residence and magically erased all memories of Cornelia from her family and friends! A dark secret was revealed that could mean trouble for the W.I.T.C.H. girls, but can they stop the spell from wiping Cornelia's existence from their lives forever!