Description
History tells us that the dragon prisons were all created using large amounts of sourcestone. It is possible that Regulos only gained access to Greenscale because it was a large amount of death sourcestone that was used to imprison him.
It is also possible, however, that since these prisons were formed as anchors of the Ward, the cracking of the magical barrier is enabling Regulos to get in and corrupt the dragons inside.
Deliver this news to Asha Catari post haste. This is critical.
Upon completion
Regulos had managed to penetrate the prison of Greenscale and had begun corrupting him?
This is terrible news. Telara only still exists because the dragons fought against each other, not with. If Regulos can manage to enthrall the other dragons to fight for him, we're finished.
We need to push forward in our efforts to rid the world of all the dragons. Regulos has been far too much of our focus. Crucia, Laethys, Maelforge, and Akylios must be found and brought to an end.