History of the Forgotten Realms

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.