is a quest item needed Baldur's Gate II: Shadows of Amn
and Baldur's Gate II: Enhanced Edition
during chapter 4
. The Matron Mother needs this, or the blood of the Elder Brain
or the eye of an Elder Beholder for the ritual. It can be acquired from the Kuo-Toan Prince who resides in the caves leading to the surface, which can be entered west in the Underdark Area.
|| This is the blood of the Kuo-Toan prince.