Imprisoned in the void of a ruined universe by vengeful gods, Tharizdun - the Chained God, the Elder Elemental Eye - shares his exile with the Progenitor, a pool of liquid crystal that is all that remains of the Abyss that destroyed his universe.

Enter our heroes Albanon, Shara and Uldane - all three adventurers readers will know from The Mark of Nerath. They thought their quests were over and done with, but danger still burns like the embers of a smoldering fire in the tall grass. The Progenitor was locked safely away, guarded by Albanon's dead master, but early on our heroes realize it was stolen and released in the presence of the green dragon Vestapalk as he fell at Shara's sword.

Now, alerted to the danger of the liquid crystal by a mysterious cleric who claims allegiance to an order that has protected the substance for time immemorial, they must go in search of the dragon's body, to ensure his demise has not been exaggerated. What they discover has consequences that could change the world...

Following directly in the wake of The Temple of Yellow Skulls, our heroes face the totality of the destructive and pestilent forces presented by the Abyssal Plague. The disease of the liquid crystal Voidharrow spreads throughout the land, transforming unsuspecting creatures into plague demons. Shara, Uldane, and the unlikely drow hero Valmaggar join forces with Tempest and Rohgar from The Mark Of Nerath, and together they set out in search of the green dragon Vestapalk, or the creature Vestapalk has become--the patient zero of this abyssal plague.

Meanwhile, Albanon and the mysterious cleric Kri Redshal -- the last remaining member of the Order of Vigilance, an order dedicated to guarding the Voidharrow -- go in search of answers to the disease that sweeps the land. While their search takes them deep into the heart of the darkness that is enveloping the land, the answers they find are truly in need of new questions. As they become aware of the true scale of the tragedy at hand, they see the forces behind them are more powerful than they had ever dreamed, and perhaps more seductive.

What you don't know will kill you...

Demascus awakens surrounded by corpses, at a shrine littered with traces of demonic rituals, with no memory of his past. But the Firestorm Cabal remembers him - and the demon who leads them seems to have a personal vendetta against him. Dodging knives, uncovering clues left by his past life, and dueling demons, Demascus must figure out who he is, what battles he is fighting, and who is hunting him before one of them catches up with him.

Tharizdun, the Chanied God, has released the Voidharrow - a liquid crystal imbued with his will and all the chaos of the Abyss - into the universe, and with it comes a transformative engine of pestilence. When exposed to the Voidharrow, individuals look as though they've been stricken by disease as the Abyssal liquid twists and deforms them into chaotic demonlike creatures. Behold the Abyssal Plague!

When a trading caravan manned by grafters and con men comes across a dead man in the desert they open the door to an Abyssal realm long since destroyed. As the Voidharrow takes hold of one of their companions, he begins to morph into a beast like none they have ever seen.

When the stakes are raised in an attempt to defraud some of the more unsavory rulers of this cruel world, the Voidharrow comes to play a role in a move that could transform our heroes forever.

The city of Luskan has always been a den of pirates, thieves, and murderers. But lately, it has gotten even worse. A ship crashes ashore with nothing but corpses. Everyday people go crazy and kill those around them. The only signs found of even the most hardened criminals who walk the streets at night are bones.

Luskan's sister city, Waterdeep, sent a detachment to quarantine the unclean city - to let the filth die, rather than infect the rest of the Realms - but Myrin has slipped inside, declaring that she will save Luskan. Shadowbane follows, determined to save Myrin and therefore her pet city - even if he has to kill every rat in Luskan to do it.

Shadowbane features the triumphant return of popular, dark vigilante Shadowbane from Downshadow and carries forth the threads of the worlds-spanning Abyssal Plague series.

The tale of a never-say-die hero struggling against the forces of evil in a world full of peril. Kalen Dren, the vigilante paladin who calls himself Shadowbane, has turned his back on a life of crime and selfishness to chart a new course with the aid of the sword Vindicator, once wielded by the vanished God of Guardians himself. He will face legions of enemies and ultimately struggle with his own dualistic nature: the bright, goodly paladin and the dark, pragmatic assassin.