The final pages of Doctor Strange #382 delivered a shocking moment when the Sentry was reintroduced into the Marvel Universe. After helping Stephen Strange defeat Loki to reclaim the title of Sorcerer Supreme, Sentry will embark in a new solo series from writer Jeff Lemire and artist Kim Jacinto, debuting June 27.

The Sentry's background is pretty complicated, especially when you factor in his history being wiped from everyone's subconsciousness, Sentry's tremendous power level, his status in the superhero community and of course, his evil persona, the Void.

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Created by Paul Jenkins and Jae Lee in 2000 (with contributions from Rick Veitch), Sentry's civilian alter ego is Robert Reynolds, a regular guy who stumbled upon a government-sanctioned serum similar to the one that granted Captain America his superhuman abilities. For Robert, this Super-Soldier serum gave him the power of a million exploding suns. Taking the superhero name Sentry, Robert led a pretty successful career fighting alongside staples like the Hulk, X-Men and Fantastic Four, as well as his sidekick, Scout. However, it wasn't until the Void appeared that Robert's life took a dramatic turn for the worst.

After a confrontation with the Void resulted in massive casualties, Sentry tasked Reed Richards, Doctor Strange and his Centrally Located Organic Computer (CLOC) with removing his presence from everyone's mind on the planet, including his own. Brian Michael Bendis would dig the character out of mothballs during his run on New Avengers, with the character going on to play an important role in The Mighty Avengers and Dark Avengers.

Siege To Horseman Of Apocalypse

No matter how hard Sentry fought, he could never keep the Void from plaguing him time and time again. In fact, Norman Osborn played on Robert's broken psyche to manipulate the extremely powerful figure into attacking Asgard in the 2010 event series, Siege. One of the more memorable -- and brutal -- moments came when Sentry ripped the god Ares in half while hovering over the battlefield.

Offenders Assemble Sentry

Sentry (under control by the Void) would also go on to kill Loki as well. Luckily, Robert was able to hold the Void off long enough to allow Thor to put him out of his misery. Sentry would lay dormant following Siege, only returning after the Apocalypse Twins revived him in Uncanny Avengers, turning Sentry into the Horseman of Death. The conclusion of that story arc left Sentry back among the good guys again, but no one expected the character to make a surprise return last year.

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A World All My Own

Marvel's preview of The Sentry #1 by Jeff Lemire, Kim Jacinto, Rain Beredo and Travis Lanham picks up the hero's story after he helped Doctor Strange defeat Loki. We're brought inside Robert's mind, where he seems to be wrestling with his own memories as visions of his heroic past flash before his eyes. A device is shown swaying back and forth in front of him, possibly the root cause of his current mental state.

We're then quickly thrown into the middle of a conflict between Sentry and the Void's Shadow Army of alien creatures. What's odd is before this happens, Robert mentions that he's "created a world all my own," and how it allows him to "be whatever I want to be." It sounds as if Sentry has retreated into his own mind, where he believes he has a better chance of fending off the Void than if he were out in the real world. Of course, Sentry doesn't have to fight alone, as he's brought some backup along to even the odds.

Sentry And His Superfriends

Joining Sentry to take on the Void are his sidekick, Scout, his loyal canine companion Watchdog and his equal, Sentress. Lemire has chosen an interesting tactic, because the only thing better than daring readers to sink their teeth into a Sentry story with all his baggage, is unpacking said baggage and finding a creative way to address it.

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The last few pages of the Sentry #1 preview display how Sentry, Scout, Watchdog and Sentress work like a well-oiled machine, which can only mean two options: One, this is a flashback tale to before Sentry mindwiped the entire world. The second option is what we mentioned earlier, and this is all taking place in Robert's mind.

Scout was one of the many people to have forgotten about Sentry, and when his memories did return, they resulted in him losing an arm to the Void. And as we see here, Scout has both his appendages, delivering more evidence this may not be taking place in the present-day.

As for Sentress, the only references to her come from the six-issue Age of Sentry miniseries from Jeff Parker and Nick Dragotta, which took place in 1961 on Earth-1611. On this Earth, Carol Danvers took up the mantle of Sentress, but that doesn't look to be the case in the preview of Sentry #1.

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If these events aren't taking place in the Sentry's mind or in the past, then the creative team will have reintroduced these long-lost characters back into the Marvel Universe. But since the Sentry has such horrible luck, Scout, Watchdog, Sentress and CLOC's appearances will more than likely be used against Sentry by his old nemesis, the Void.