• -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. »

  • -1525 DR
  • Merrow and koalinth band together into the Horde of Bloodtide, only to be defeated again by the mad King Kyron of Thalorlyn. The rebel Republic of Tivaan rises among the merfolk to unite the Hmur Plateau against Aryselmalyr's mad ruler, once spies reveal that Coronal Essyl and King Kyron have allied with kraken to supplement their power. »

  • -1524 DR
  • Kyron and his loyalists are deposed and outcast from Hmur Plateau, despite the king's kraken ally and the powerful Emerald Eye. »

  • -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. »

  • -1506 DR
  • King Kyron dies at the hands of the Dukars, who take the Emerald Eye of Kyron into their custody. The merfolk traitors either return to Tivaan or remain allied with Coronal Essyl. »

  • -1396 DR
  • End of the Fourth Seros War
    This war destroys the Second Kingdom of Kyron, setting back koalinth population for decades. The Emerald Eye is recaptured, and the possessed mermaid is believed dead, buried in a collapsed reef on the Plains of Duna, which hereafter are called the Haunted Plains. The new merfolk community, under the auspices of the kindly Coronal Vaequiis, is the kingdom of Thalvan, led by King Darmox. »

  • Start of the Seventh Seros War
  • -108 DR to -106 DR
    The morkoth of the Theocracy of the Deep Ones attack the merfolk cities Es'rath and Hmurrath on two fronts. They free the Emerald Eye of Kyron, using it with astonishing effectiveness. »

  • -104 DR [Year of the Star Stallion]
  • The Emerald Eye of Kyron, after some study, is secretly sealed within the black coral walls of Vynagyr in Seros. »