Sarah dies at the ripe of age of 127. Abraham negotiates to buy a plot of land from Ephron a Hittite living among the children of Heth. Again, there is a negotiation, the cost ends up being 400 shekels of silver. A land survey appears to have been carried out and Sarah is buried in a cave in a field that is officially owned by Abraham near the land of Mamre where they have been living.
In other words:
Sarah dies and is buried.
The coyness with which these negotiations to purchase land occur. (Genesis 23: 3-16)
Most interesting bit:
That the burial needs to be in a cave. (Genesis 23:19)
Moral Lesson Learned:
Be polite, honest and fair when negotiating a deal (Genesis 23:3-16)