The Long Kiss is the title of the 14th issue of the 9th Arc and the 113th overall issue of the Italian comics series W.I.T.C.H.
The girls spent their second half of their summer vacation by the ocean, where they met the mysterious girl Mary who turned out to be a princess in an underwater kingdom. There was a fight between starfish and sharks but with W.I.T.C.H. on the opposite team, the latter didn't have a chance. The girls were being victorious with minimum effort and Mareeve was finally free to spend the rest of her days with her mortal boyfriend.