Larriaz is a Sirine located in a house on the southeast side of the Baldur's Gate Docks. She was kidnapped by fishermen and brought back to their home where they then tried to rape her. She fought off and killed all four of them but she was out of the water too long and died herself soon after.
When the player enters the house she asks them to leave so she can die in peace. She may tell her story if not provoked to hostility too early in the conversation. If player tries to help her too persistently she will attack but if the player agrees to leave her be she will die on her own.