Original Sin (2014) is one of the most meticulously constructed Marvel crossovers of the 2010s. Written by Jason Aaron and drawn by Mike Deodato Jr., this eight-issue event revolves around a cosmic murder: the assassination of Uatu the Watcher, humanity's immortal observer.
Original Sin (2014) is one of the most carefully constructed Marvel crossovers of the 2010s. Written by Jason Aaron with art by Mike Deodato Jr., this eight-issue event revolves around a cosmic murder: the assassination of Uatu the Watcher, humanity's immortal observer. With Uatu's death, his eyes — which have recorded everything, every secret of every Marvel hero — are stolen and explode, revealing hidden truths the characters would have preferred never to know.
It's a brilliant premise that narratively justifies major revelations across all the tie-ins. For the collector, Original Sin is both accessible and packed with potential key issues — provided you know which ones to target among the roughly thirty issues published between May and October 2014.
The 8 issues of the main run: what you need to know
The main Original Sin series runs 8 issues (#0 to #8, with a #0 prologue) plus an Annual. Jason Aaron tells the investigation into Uatu's murder, led by Nick Fury Sr. (the original), Thor, Black Panther, Spider-Man, Emma Frost, Winter Soldier, Gamora and Moon Knight in teams Fury himself assembles.
- Original Sin #0: Prologue centered on Uatu and Nova (Sam Alexander). Essential context for understanding the Watcher's role. Minor key issue for Nova continuity.
- Original Sin #1: Uatu's murder. Investigation begins. Iconic opening cover with the Watcher's torn-out eye. Very important collecting issue.
- Original Sin #2-4: The investigation progresses. The revelations start landing on the characters. Narratively solid but without standalone key issue status beyond the main series.
- Original Sin #5-6: The truth about Nick Fury Sr. unfolds. It's revealed Fury has been Earth's secret guardian for decades, eliminating threats from the shadows — a concept that echoes "Agents of S.H.I.E.L.D." but on a cosmic scale. Key issues for Fury continuity.
- Original Sin #7-8: Resolution. Nick Fury Sr. is condemned to become "The Unseen," eternal observer of Earth chained to the Moon. Thor learns a secret that makes him unworthy of Mjolnir, a revelation that triggers the Jane Foster Thor run.
The revelation that changes everything: Original Sin #8 contains the secret Nick Fury whispers to Thor that makes him unworthy of Mjolnir. The secret isn't revealed in this issue but in Thor: God of Thunder and the following Jane Foster run. Original Sin #8 is technically the trigger for one of the most important Thor runs of the decade.
The tie-ins that are actually worth something
This is Original Sin's strength: its tie-ins are often better than the main series, and some contain top-tier key issues. Here's how to sort them:
Original Sin #3.1 through #3.4, Thor & Loki: The Tenth Realm
This four-part miniseries is the most important tie-in of the entire event. It reveals the existence of a tenth realm that even Odin had forgotten — and, most importantly, the truth about Angela, the character Marvel acquired from Todd McFarlane (who had created her for Spawn). Angela is introduced as Thor's lost sister, daughter of Odin. Technically her first appearance in main Marvel continuity (she had shown up in Guardians of the Galaxy #5 in 2013, but her Thor-family identity is revealed here). Issues #3.1 and #3.4 are the most sought-after.
Original Sins #1-5 (anthology)
This parallel anthology series contains short stories about minor characters affected by Uatu's revelations. Worth collecting if you follow Young Avengers or niche characters; otherwise, limited speculative value.
Original Sin: Hulk vs Iron Man #1-4
One of the best tie-ins narratively. The revelation concerns Bruce Banner: he learns that Tony Stark knew the gamma bomb that turned him into the Hulk was being tested on a human (Banner) but did nothing to stop it. This revelation fuels the Hulk/Iron Man animosity for years. #1 is the key issue for Hulk or Iron Man collectors.
Deadpool #29 (2014), "Original Sin" tie-in
This issue from the Posehn & Duggan Deadpool run contains a revelation about Deadpool's secret children, specifically introducing Ellie Camacho, his daughter. For Deadpool collectors, this is an undisputed key issue of the run. Deadpool #29 is regularly cited among the most prized Original Sin key issues, its value having climbed since 2014 with the character's growing popularity.
Original Sin: Fury's Big Week #1-4
This flashback miniseries details Nick Fury Sr.'s secret operations across the decades. Essential for understanding "The Man on the Wall" mythology. Limited speculative value but solid storytelling.
Original Sin Annual #1
Contains a story centered on the Watcher and cosmic characters. Minor key issue for cosmic Marvel collectors — interesting but not a priority.
Your complete Original Sin checklist
Track the 8 main issues and all your Original Sin tie-ins in a collection that's organized and updated in real time.
Start free, 14 daysThe notable first appearances from the event
Original Sin produced several first appearances important to Marvel continuity:
Angela (Marvel), Guardians of the Galaxy #5 + Original Sin #3.1
Technically, Angela makes her Marvel first appearance in Guardians of the Galaxy #5 (Brian Michael Bendis, 2013). But it's Original Sin #3.1 that reveals her identity as Thor's sister, making it a complementary and essential key issue. The two issues form a pair.
Ellie Camacho (Deadpool's daughter), Deadpool #29
The introduction of Ellie Camacho, daughter of Wade Wilson and Mercedes Wilson, in Deadpool #29 (Original Sin tie-in) is one of the event's most solid first appearances. The character has been reused multiple times since and remains in active continuity. This issue is the most in-demand Original Sin key issue outside the main series.
The Unseen (Nick Fury Sr.), Original Sin #8
Nick Fury Sr.'s transformation into "The Unseen" in Original Sin #8 is a first appearance in a sense — it's the first time the character appears under this identity and in this cosmic state. For collectors following the long Nick Fury arc, this issue is a major transformation key issue.
Current Original Sin key issue values (2026)
Price disclaimer: The values below are estimates based on 2025-2026 observed sales. Comic prices can fluctuate significantly. Always check recent "Sold" listings on eBay before buying or selling.
| Issue | Status | Raw NM price |
|---|---|---|
| Original Sin #1 (regular edition) | Opening issue, event key issue | $9-22 |
| Original Sin #1 (1:25 variant) | Ratio variant, scarcer | $45-90 |
| Original Sin #1 (1:50 Deodato variant) | Rare variant, strong demand | $110-220 |
| Original Sin #3.1, Thor & Loki #1 | 1st app. Angela (Marvel) in Thor context | $18-40 |
| Original Sin #8 | Thor revelation + creation of The Unseen | $12-28 |
| Deadpool #29 (2014) | 1st app. Ellie Camacho (Deadpool's daughter) | $22-65 |
| Original Sin: Hulk vs Iron Man #1 | Key tie-in Banner/Stark revelation | $6-18 |
Original Sin's legacy in Marvel continuity
Original Sin's impact on Marvel continuity proved durable on several specific points. The most important is Thor's transformation: the revelation that he's "unworthy" of Mjolnir in Original Sin #8 triggers directly Jason Aaron's run with Jane Foster as Thor in Thor: God of Thunder and Thor Vol. 4. That Jane Foster Thor run (2014-2018) is one of the most acclaimed of the decade and includes several highly sought-after key issues.
The second major impact is Angela's introduction into Thor continuity, which opens a solo series for the character (Angela: Asgard's Assassin, 2015) and enriches Asgardian mythology. The third is the establishment of "The Unseen" as a recurring mysterious figure in the background of Marvel continuity — he reappears notably in Incoming! (2019) and several cosmic arcs.
For collectors following Jason Aaron's Thor runs or interested in Deadpool, Original Sin is an essential event. For others, the 8 main issues remain a pleasant read but without particular financial urgency.
How to complete your Original Sin collection
The best approach is to separate three priority tiers based on your interests:
- Top priority: Original Sin #1 (regular edition), #3.1 (Angela), #8 (Thor revelation / The Unseen), Deadpool #29.
- Secondary priority: Original Sin #0, #2-7, Original Sin: Hulk vs Iron Man #1-4. To read the event in continuity and understand the revelations.
- Optional: Original Sins #1-5, Fury's Big Week #1-4, Annual #1. Complete if you collect exhaustively or love the characters involved.
With My Comics Collection you can build a custom Original Sin checklist, mark owned issues and track prices on your key issues to decide when to complete or sell.
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