Thread:Spencerz/@comment-26373303-20130520121109/@comment-1713281-20130520151243

So when something appears in a Marvel publication that doesn't fit into the normal continuity, or it doesn't have a reality number, we use a Temporary Reality Number, or a TRN. If you feel like adding them, they can be entered under the next available number, which I believe is Earth-TRN264.