The Earth is all but done. The last remnants of humanity cling to a mountaintop island lost in endless floodwater. The parliaments of the Green, the Red, and the Rot have united their powers to summon an avatar-a horrific, humanity-killing monster who could only be stopped by Alec Holland. Shame he’s been dead for decades… Collects the complete miniseries Swamp Thing: Green Hell #1-3.

During the catastrophic events of Heroes in Crisis, Poison Ivy was killed, and Harley Quinn holds herself responsible. But when Poison Ivy is resurrected, Harley decides to take care of her best friend, who has evolved into a creature as much flora as fauna. What, then, is Harley to do when Poison Ivy reveals she's had enough of the humans who not only killed her, but are destroying the environment day by day? Can Poison Ivy entice Harley to join her in the plant world, or will Harley have to prove herself by stopping whatever plot Ivy is cooking up? Collects Harley Quinn & Poison Ivy #1-6.

"POISON IVY." When a Gotham businessman destroys Ivy's island paradise, she sets out to destroy everything he loves, no matter whom she has to kill to do it.

Featuring the first appearance of the Swamp Thing by Len Wein and Bernie Wrightson! Who is this mysterious creature—part man, part vegetation—and where did it come from?

The legendary Swamp Thing has resurfaced for a new age just as a new force threatens to rot away all life on Earth! Since the dawn of time, the planet's safety has depended on maintaining a balance of three great powers: the Green, the force that unites all plant life; the Red, the force that unites all animal life; and the Rot, the force of death. The Rot's own avatar is growing stronger, and servants of decay gain more territory every day. If Alec Holland doesn't return to his duties as protector of the Green soon, there might not be anything left to protect! Collects Swamp Thing #0-11

"MILK WARS" part four! Swamp Thing has detected a disturbance in the Green, and his hunt for it has led him to RetCo headquarters. There he finds Cave Carson and his crew struggling against being assimilated into RetCo's diabolical narrative. Is it possible for Swampy and Cave to destroy the organization from the inside? Plus, find out how their efforts help Eternity Girl in the final installment of her backup story!

POISON IVY BLOSSOMS INTO HER FIRST SOLO ADVENTURE! There's animal. There's vegetable. And there's somewhere in between. That's where Dr. Pamela Isley, a.k.a. Poison Ivy, finds herself. Instead of battling the Dark Knight, she is now a researcher at the Gotham Botanical Gardens, studying the possibility of creating plant-human hybrids. But when her fellow scientists start turning up dead, she's both the natural leading suspect…and the only person (or plant) who can crack the case. To solve the mystery, Poison Ivy must team up-or throw down-with her oldest friends and closest frenemies, from Harley Quinn to Catwoman to the Swamp Thing. Can she keep things under control, or will she be responsible for a deadly new harvest? Find out in POISON IVY: CYCLE OF LIFE AND DEATH. Sprouting from the brains of the up-and-coming creative team of writer Amy Chu and artist Clay Mann, it's a mean, green murder mystery starring one of Batman's greatest rogues! Collects POISON IVY: CYCLE OF LIFE AND DEATH #1-6.

Retelling the origin of the Swamp Thing! Meanwhile, in the present, Swamp Thing saves three hunters from a bear—but the hunters quickly turn their guns on the new perceived threat!

In this new collection, Swamp Thing is out of his element as he shepherds a lost boy through a blinding blizzard and other hazards of a strange, frozen tundra. In this touching and harrowing tale of survival, the pair must navigate countless threats throughout a bewildering terrain-with a bloodthirsty snow monster hot on their heels. But how long can they rely on each other? Plus, on Halloween, the barrier between worlds grows thin-and only the Swamp Thing is strong enough to face the monsters that come from the other side. In addition, this book features the final Swamp Thing story from the monster's co-creator, Len Wein. Originally intended as the start of a new series, it is presented here with art by Kelley Jones. Collects stories from SWAMP THING WINTER SPECIAL #1, SWAMP THING HALLOWEEN HORROR GIANT #1 and stories from CURSED COMICS CAVALCADE #1 and YOUNG MONSTERS IN LOVE #1.

Deep in the Louisiana bayou, a terrifying monster stalks the waters, strangling life before it can grow and leaving a trail of death in its wake. And the Sunderland Corporation is coming for Swamp Thing next. Swamp Thing alone stands to defend his community from the growing menace of an evil corporation ready to turn the earth to barren soil if it helps their bottom line. But Sunderland's reach stretches further than even the Swamp Thing can grasp…their plans for destruction will affect not just the swamps he calls home, but the entire planet! And Swamp Thing is not the only strange spirit alive in the bayou. When a fifolet-a ghost light, a will o' the wisp-leads him to strangers who need his help, Swamp Thing must discover what this restless ghost's true purpose might be…if he can survive long enough to find out. Collects Swamp Thing Giant Direct Market Edition #1-4, Swamp Thing Giant (Wal-Mart Edition) #5, Swamp Thing: New Roots #6, and Swamp Thing: New Roots #9.