Millar shows off. Admittedly, the constraint of the “River Run” arc–it being a short story collection–let’s him be more writerly than one usually expects from a comic, but this issue is just a fantastic show of talent.
The story centers around a Golden Age hero who has grown old, but still does the superhero thing when needed. Millar doesn’t open with him though, instead setting up the ground situation for the first few pages. Slaughter Swamp is where people go to get rid of themselves and others. And Alec pops into Solomon Grundy’s mind in this place.
The hero shows up to stop Grundy, which leads to a reasonably good fight scene from Hester and DeMulder. It doesn’t read fast enough–Millar foreshadows the hero’s death, which makes one want the issue to read faster. Then there’s the revealation.
Again, not much Alec, but who cares… It’s great.
CREDITS
River Run, Chapter Four: The Secret of Slaughter Swamp; writer, Mark Millar; penciller, Phil Hester; inker, Kim DeMulder; colorist, Tatjana Wood; letterer, Richard Starkings; editor, Stuart Moore; publisher, Vertigo.

There’s a cute little reference to Ultraman and Owlman on the news at the beginning of the issue. Alec’s travels bring him to Earth-Three (or something like it) but he doesn’t run afoul of the supervillains. Instead, he finds himself with the Arcanes.
The pacing is a mess this issue. It’s a decent little issue and all, but Millar’s pacing is just a disaster.
It’s a good, but far from profound, issue. Much like Moore and Veitch, Millar has sent Swamp Thing on a multi-issue themed adventure. Not through time or space, but through genre fiction. Here he appears in a supernatural noir world, aiding a private detective on a case involving a devolving man.
Millar opens the issue with an homage to Time’s Arrow… telling the story of a woman drowning in the swamp in reverse. He rewinds her final day (starting with the autopsy) until she meets up with Alec.
And here Millar writes his best issue so far. It’s probably the best Swamp Thing since some time during Veitch’s run–and not just because Millar gives Alec a moment where he can appreciate life in the swamp again (something big during the Moore and Veitch runs).
Did Sargon die in a Swamp Thing issue? I can’t remember. I think maybe he did. If so, Millar’s reaching way back to bring forward new plot elements–though it’s not essential for Sargon’s character to be Sargon, it just needed to be a magician with a niece.
Hester and DeMulder draw Lady Jane for a scene. It’s interesting to see her show up–Millar uses the scene to establish she has some idea what’s going on with Swamp Thing–it’s also nice to see how well the artists visualize the character.
Millar doesn’t keep up with the unpleasantness. This issue is far less intense than the previous, even though Alec’s on the run in Amsterdam with Nelson (the big game hunter) after him.