Swamp Thing is a character who blurs the lines of regular man who looks like a monster, a straight up piece of vegetation that looks sort of like a man, and both of things but also an eco-terrorist of sorts, but no matter how you view the character, it’s impossible to deny the fact that some of the greatest writers in comics have either written him or his ancillary characters. Also, when he’s not questioning his identity, he’s a pretty eco-friendly dude. So, it’s with this fact that Comixology is offering a 99 cent three-day sale on Swamp Thing for this weekend’s Earth Day.

Comixology has recently made these sales more manageable if you don’t exactly know what you’re looking for and have places different comics into sections that categorize them more efficiently than just, “Here’s a bunch of comics that are on sale.” These different sections for Swamp Thing are:

Batman: Mask Of The Phantasm
Directed by Eric Radomski, Bruce W. Timm
Written by Alan Burnett, Martin Pasko, Michael Reaves, Paul Dini
Voiced by Kevin Conroy, Mark Hamill, Dana Delany, Stacy Keach
1993

When Miss Andrea Beaumont returns to Gotham City after a ten-year absence, it throws Bruce Wayne’s world into upheaval. Bruce and Andrea were romantically involved just as Bruce was beginning his trial runs as a vigilante, and her presence brings back a flood of memories — both about the love that he lost and his earliest crime fighting adventures before he became the caped crusader. Bruce’s troubles become twofold, when a new masked entity in the city begins knocking off gangsters, and Batman takes the wrap.

Things go from bad to worse when an elderly crime boss turns to desperate measures and hires the Joker to kill Batman before he is murdered. Now, Batman must try to solve the mystery of the ghostly Phantasm while preventing anymore deaths, and at the same time subdue the psychotic antics of the Joker, who has taken up residence in the abandoned Worlds Fair exhibit. Meanwhile, as boy billionaire, Bruce must reconcile his feelings for Andrea.