Wolverine, who already has a solo book (and one that has been drawn by John Buscema at that!), gets 25% of this anthology book for an extended story. We’re heading into the “Wolverine is really cool and everyone loves him so now he’s everywhere, which makes him NOT special” era of Marvel.
This story is pretty much the same as several of his solo book tales: He’s “detective Wolverine” looking for someone who killed an old buddy. Yes you’ve seen that before, and yes you’ll see it again.
He does fight a blobby shadow thing though. And the fight lasts four issues.
It’s called “dark shadow.”
Nothing else worth writing about here. Except that he beats up a shark on the cover above.