A curse unleashed by Zzabur to destroy the Middle Sea Empire at the end of the Imperial Age.
- Also known the Closing of the Seas
- The effect of the Closing was to prevent all travel across open oceans.
- Any ship going out of the sight of land would be lost to unknown forces: including the sea monsters, weather and Triolini.
- The Boat Planet also disappeared.
- The Closing was circumvented by Dormal in 1580 ST.
- It is broken entirely by the Boat Planet Reappearance in 1624 ST.