'Meridian' was a comic book series published by CrossGen Comics, and taking place on the planet Demetria, in CrossGen's Sigilverse. It was written by Barbara Kesel, and penciled by a number of artists including Joshua Middleton and Steve Mc Niven. Meridian ran for 44 issues, from July of 2000 to April of 2004.
Meridian is the fictional town of Metamoor in the comic and cartoon W.I.T.C.H. in which the Guardians of the Veil defeat the evil prince, Phobos, and put their friend, Princess Elyon, on the throne. The inhabitants are a mixture of both humans and green/blue-skinned creatures. It was barred from accessing the rest of the universe by the Oracle because of the tyrannical Prince Phobos, who drained Meridian dry of its energy until Elyon regains the Crown of Light and reverses the evil effects of Phobos's magic.