The Three Witches are minor villains from the adventure video game King's Quest IV: The Perils of Rosella. They are three sisters that inhabit a skull-like cave.
The Three Witches are encountered in their skull-shaped cave when Rosella first enters the cave. One of them will run towards Rosella to try to grab her. The trick is to go to the other two sisters without touching them and grab their eye. Once you get their eye, they will tell you to give it back. You then have to leave the cave and come back in it.
When you return to the cave, the Three Witches will throw you a scarab and tell you to return them thier eye. When the player picks up the scarab, then the player throws them thier eye. Once they have thier eye, they tell Rosella to come closer because they have a surprise for her. Do not listen to them because they are trying to catch you and put you into their cauldron to kill you.