"Remnants of Summer" is the 3rd issue in the Arc 2: Nerissa's Revenge Saga, and the number 18 overall issue of W.I.T.C.H.
Hay Lin finds summer love, Luba's fate is questioned by the Council of Kandrakar and the W.I.T.C.H. girls come face to face with Nerissa for the first time.
School is back in session and when Hay Lin reveals to Will, Irma, Taranee and Cornelia that she has met a boy named Eric Lyndon during the summer, they want to hear all about him. She tells them that she met him while roller blading and her purse got stuck in Eric's motorcycle. He realized that Hay Lin was stuck, so stopped and she fell over. After telling them the story, they are called to Kandrakar to decide Luba's fate. Later, Matt sees Will shaking hands with Eric and Matt thinks that she has found a new boyfriend. Irma calls out to Matt, who grumply shakes Eric's hand. Irma then gets mad at Will and Matt and calls Matt a creep and stomps on his foot. Then, Eric is introduced to Martain, who tries to convince him to join the Happy Bears. Later on, Martain reveals that it is Hay Lin that Eric likes, not Will and Matt is at ease. Meanwhile, Nerissa uses Caleb and her Knights of Destruction to grant her back her youth and improve her mobility and power. Caleb manages to run away and meets Luba along the way. Cornelia senses that Caleb is in trouble, but Luba rescues him, assuring him he'd soon be with Cornelia. The W.I.T.C.H. girls are sent to Kandrakar, where they come face to face with Nerissa and her Knights of Destruction. During the battle, Luba tackles Nerissa and tells her that it is their battle. Luba then orders the W.I.T.C.H. girls to leave her and they do. Luba then sacrifices herself to prove that she isn't so antagonistic.