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Have to put in the spoiler space or Phil will kick me in the teeth!
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Marrina appears in a cameo, just one panel. She's a floating head in a dream sequence, very similar to the cameo in Namor #36 (Mar 1993) when she also appeared in a dream sequence.

http://marvel.com/comic_books/issue/...l_vault_0000_1

The story behind the comic is very strange - the pencils were found with no script, and Fabian Nicieza (the original writer) was unable to remember it, so Kurt Busiek made up a script to fit what he thought was going on.... and it's a hoot! Sort of like what Alpha Flight fans do when we see Dale Eaglesham's unlettered art in previews. He just made up what he thought might be going on and it's just hysterical, I love it!