Gargoyles X Fantastic Four #1

When the Manhattan Clan are invited on a tour of the world-famous Baxter Building — the high-tech home of the Fantastic Four — things quickly go from impressive to destructive when Coldsteel joins forces with the Dragon Man to unleash the terror that is Annihilus — trapping Franklin, Valeria, and Gnash in the Negative Zone in the process!

Now, both of these heroic extended families — enchanted stone and super-human alike — must team up in an all-out effort to save their children, their city, and their whole world from destruction!