Wolverine's Secret DC Cameo Exposed the Gross Limit of His Healing Factor

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The mutant brawler known as Wolverine may be 'the best he is at what he does,' but a brief visit to a DC Comics property proved even his vaunted healing factor has a limit — one that Marvel later confirmed in its own canon.

Top 10 is a comic series from Alan Moore, Gene Ha, and Zander Cannon, taking place in Neopolis — a city where every single citizen has some kind of superpower. The series — published under America's Best Comics and later DC's adult-oriented Vertigo imprint — follows Robyn «Toybox» Slinger as she joins the city's police force, partnering up with fantasy-themed powerhouse Jeff Smax. Top 10 is a typically ambitious project from Moore, and is packed to bursting with background gags and references based on comic history, from Marvel, DC, and Star Trek to Popeye and Archie.

Related: Wolverine Perfected His Healing Factor by Totally Sacrificing His Dignity

After Robyn is injured, Smax visits her to check on her condition in Top 10 #11. As he goes to leave, fans get a glimpse of two very clearly dead figures being carried inside. However, on closer inspection, these aren't two figures, but rather two parts of a character clearly intended to be Wolverine, with Logan's metallic skeleton, claws, and signature hairstyle. Wolverine's adamantium skeleton and empty skin have clearly been separated, killing him despite his extreme healing.

While Wolverine has healed from some extreme situations in the past, Marvel recently confirmed that reducing him down to his skeleton is indeed an effective way to kill him — something the advanced Sentinel known as Nimrod has done several times (a callback to his iconic death in the famous 'Days of Future Past.') Wolverine has likewise been killed by being dropped into the sun,