This is a hide and seek game for grown ups.
You choose one person to be the witch, then turn all the lights off while that person goes and hides.
After giving them 5 mins, you then go looking.
Each person is allowed to ask twice only " where are you witch?"

The witch must reply with a cackle.But he or she can then move elsewhere.
Whoever catches the with becomes the new witch for round 2

You could add a little to the atmosphere by having the witch wear a witch hat

John