Comics › Swamp Thing: Green Hell #2 Image 1 of 1 Swamp Thing: Green Hell #2 $10.99 John Constantine summons Alec Holland back. Issue #2 of Jeff Lemire and Doug Mahnke's Swamp Thing: Green Hell (DC Black Label). Add To Cart Added! John Constantine summons Alec Holland back. Issue #2 of Jeff Lemire and Doug Mahnke's Swamp Thing: Green Hell (DC Black Label).