The New Teen Titans, Vol. 2 #2

The Search for Raven
An impenetrable darkness blankets the earth, and an unnatural thunderstorm hits New York and the Titans Tower, all of which are manifestations of the imminent return of Trigon. Lilith rejoins the Titans to help them search for the vanished Raven, but insists that they recruit Wally West, due to his previous involvement with the empath. Lilith then leads the Titans in a seance, using Raven’s rings as a focus. Raven’s image appears, but rejects their help, after which the Titans are mystically transported to Azarath that is in the process of being destroyed. Despite the efforts of the Teen Titans, Azarath and all of its inhabitants are apparently destroyed. Back in New York, Raven returns to Earth in a terrifying transformed state, with red skin and four eyes like her demonic father, and announces his coming. As the people of New York panic to this announcement the Titans Tower is turned into a solid mass of rock, and a gigantic Trigon appears on top of it.
Release Date: 1984