The Darkest Heart was the ninth adventure released for the Cabal of Shadows Faction Adventure to be run as part of the Xen'drik Expeditions campaign.
Synopsis[]
Adventure Start: The PCs attend a meeting where they receive their assignment to retrieve the "Darkest Heart" from the tomb-shrine of K'naga-oliana. After the meeting, the different Obscura of the Cabal of Shadows receive their secondary orders.
Part One: The PCs journey to the tomb-shrine and on the way there they are attacked by scorrows and monstrous scorpions.
Part Two: The PCs arrive at the tomb-shrine complex, now mostly in ruins, and explore it. During the exploration they are attacked by hill giants and dire wolves.
Part Three: The PCs explore the tomb-shrine and discover the "Darkest Heart" is a large Eberron Dragonshard. Taking the Eberron Dragonshard causes Eberron to become coterminous with Mabar the Plane of Endless Night at their location. Shadows emerge and attack the PCs.
Part Four: The PCs return to Stormreach and meet with the Council of the Obscured. There they learn they must hand over the "Darkest Heart" to Osien Terth of the Arclight Battalion. The meeting site is compromised and they have to deal with the people sent to take it.
Ending the Adventure: The adventure concludes and the PCs receive their rewards.