Before Alan Moore revolutionized graphic storytelling with Watchmen, he made a splash with his American comics debut in Swamp Thing. Forget the cheesy ’90s TV show, this is truly stellar horror.

The panel layouts are ambitious and original, with imaginative splash pages reminiscent of Will Eisner’s. The characters are fully realized. But most important is that Moore understands the true purpose of horror stories: to comment on the real world.

This deluxe hardcover edition reprints for the first time issue No. 20, which was previously unavailable, and includes an introduction by Swamp Thing creator Len Wein.

Saga of the Swamp Thing, Book 1 is currently available.