History of the Red & Black

The Red & Black kill a Defiled dragon and destroy a laboratory.

The Red & Black work for the Pirate King and recover the second Miasma Bomb.

The heroes arrive in the City-State of Southton, in search of Grindstaff's next Laboratory. Instead, they find a mysterious, but dashing, Ork named Axton who leads them towards Demonhead Island, a pleasure resort that Grindstaff seems to have frequented.

The Red & Black arrived at the mysterious Timelocked Tower, recently occupied by the Horncackle Hag Coven. The Hags soon laid dead and the heroes in control of a flying castle keep.

Guided by a holy vision, the R&B Investigate the local Church of Sol for the Soul Gems that contain the souls of Grindstaff's family. After running afoul of Houston Dykstra, a powerful aristocrat in Seavale, the R&B managed to retrieve the Gems and escape the city.

The Red & Black make landfall on South Drak Isle at the abandoned port town of Vanth. Discovering signs of battle with in the ruined buildings, the party traveled north towards D'Kae. After experiencing the twisted, mutated, undead horrors of the Miasma, they eventually reached the outskirts of the capital city. With the city under siege by the Traitorous Defiled, the R&B battled an Alhoon, its BoneClaw servant, and a few ghouls. In a close fight, the Alhoon decided to escape once outnumbered, despite seemingly having the tactical advantage.

After tending their wounds, the R&B then arrived at the center of town, to the Cathedral and the seat of power of Lady De'Fyll. After being ushered into the inner sanctum by the Faceless, the party explained their plan to use the Soul Gems and the preserved bodies of his wife and daughter to convince (threaten?) Grindstaff to assist them against Quantus the Traitor. Lady De'Fyll explained the relationship between Quantus and Grindstaff... Grindstaff discovered a way to create more Defiled and Quantus created a way to control them. Together, they were an existential threat.

As promised, Viktor Nikolov (Grindstaff the Gaunt) contacted the Red & Black and offered to teleport them as close to Quantus the Traitor's location as possible. The party found themselves in a rugged, alpine valley, dominated by a massive, inverted mountain floating the sky, secured by massive adamantine chains. 
Calling upon her powerful connection to nature, Wren the Druid transformed the party into fleet wind spirits who screamed into the sky, towards the citadel that sat atop the flouting mountain.
Evading the strange, morphing Citadel's automated defenses, the party arrived at the center of the citadel.
Facing, and defeating, the Alhoon and a squad of ghouls, caused the path deeper into the bowels of the Citadel to reveal itself. The heroes descended.