Forces of Change - W.I.T.C.H., Bk 6 Author:Parke Godwin Will, Irma, Cornelia, and Hay Lin are five ordinary friends with an extraordinary secret. They have been chosen to be Guardians of the Veil. With the help of the four elements of nature -- air, earth, water, and fire -- and the power of energy, the five friends must find a way to save the earth from evil forces.