W.I.T.C.H. Owl shadow.

"Irma is worried that things are not going well for her at school. She considers herself not smart enough to be a sorceress. However, after passing all the tests, she realizes that knowledge and true wisdom are not the same thing. In this book, sorceress friends from the W.I.T.C.H. go on a third journey through time. They must find the next piece of the Shattered Orb, the Owl Fragment. Everything goes wrong from the start. Girlfriends are separated, Hai Lin falls into a parallel world, very similar to Heatherfield. The Ghost of Time Gorgon wants to take away the Fragments obtained with such difficulty from the sorceresses. Can the girls save Hai Lin and find their way home?"