—Description in Fire Emblem Echoes: Shadows of Valentia.
The Sluice Gate is a location in Fire Emblem Gaiden and its remake. It is located in the top left-side of Zofia and it appeared at the end on Chapter 3 in Alm's route. The boss of the Sluice Gate in Chapter 3 is Tatarrah, along with a brainwashed Delthea.
According to the Sluice Keeper, it was built roughly one hundred years prior to the events of the game.
- Delthea - Talk to her if she survived from the previous battle.