• -1588 DR
  • Attempts to raise a mythal over the sea elf capital of Coryselmal fail. Feeling betrayed by the Seldarine, Coronal Essyl Merynth of Aryselmalyr succumbs to the whispers of Dagon and begins sliding quietly into madness. »

  • -1535 DR
  • The ixitxachitl Imperium of Ilvanyv falls. In the same year, the long loyal merfolk of Thalorlyn on the Hmur Plateau rebel against the oppressive violence of the war. Coronal Essyl co-opts the rebellion by supporting a merfolk traitor, Kyron the Mad, who had also succumbed to the whispers of Dagon. Kyron rises to a position of leadership among the merfolk while secretly passing military secrets to agents of the coronal. »

  • -1530 DR
  • Coronal Essyl dispatches an expedition into the depths of the Trench of Lopok. His agents return in the company of a trio of Dagon-serving fiendish kraken bearing a newly forged artifact known as the Emerald Eye, which Essyl gives to Kyron to ensure his loyalty. With the aid of their cephalopodan allies, the mad coronal seized even more power in Seros. »

  • -1509 DR
  • The First Shalarin Passing:
    The obyrinth lord Dagon, eldest of Those Who Sleep Below, sets in motion his plan to control the depths of Seros. The first wildtide portal opens, and the shalarins arrive within Seros from the Sea of Corynactis, their home on the far side of Toril, west of Maztica. Immediately attacked by the magically attuned Emerald Eye and the madmen Kyron and Essyl, the shalarin lose more than 17 percent of their number. Tivaan, the Dukar orders, and Hmurbar all rush to the aid of the shalarin and quickly gain powerful allies. »

  • 1371 DR [Year of the Unstrung Harp]
  • The Fifth Shalarin Passing
    Shalarins are once again swept out of the Sea of Corynactis and into the Sea of Fallen Stars. This fifth and final passing results in a permanent portal between the two seas. The shalarins of As'arem and the new arrivals endeaver to keep the existence of the portal as quiet as possible, fearing the reprecussions to both communities if word of its existence gets out to other folk of Faerun.

    In the interval between the Fourth Passing and the Fifth Passing, the Corynactisian shalarins all but abandoned their ancient deities, who had grown silent. The cult of Dagon is now the predominant religion in the Sea of Corynactis, and those shalarins opposed to its butgeoning influence were largely swept up by the Fifth Passing and deposited in Seros. Once the Serosian shalarins realize the danger, they largely cut off travel between the two communities. However, the cult of Corynactis, as it is also known, has already taken root among their community, and its ranks continue to grow in secret among their number. »