Doom Currents

Deadly currents for sailors appearing in many parts of Homeward Ocean.
 * They move in from Sramak's River, then toward and around the Magasta's Pool in a counter-clockwise direction.
 * Any ship (except now nearly extinct Dragonships of Waertagi) caught by it is drawn swiftly into the pool, unable to escape unless it is very sturdy, well-captained and lucky.
 * Doom Currents from the south are: Serelazam, Sshorg.
 * Sshorg gives rise to Bezarngay Boil, Sedlazam and Sedeni.
 * Doom Current from the north Banthe is Denestlazam.

Source:Men of the Sea