The Shock of Her Life. The Last Beautiful Woman, #2

Jenna is more than 150 years old, but looks as if she is between 30 and 40. Through a unique set of circumstances she has become known as the most beautiful woman in the world, although she would disagree. She has become very powerful, advising everyone from small children to big corporations. There is a Genetics Institute, owned by her, that investigates her genetics. She is always looking for people like herself, and has found two teenage children who seem to be like her.
She is trying hard to adopt them, so far without success. She has found three other people, older than the kids, who seem to switch identities every 10 years or so, and who do not seem to age like other people. Could they be like her? She has her agents watch them carefully from a distance. One day the agents make a mistake which changes everything! A chain of events follows, which results in her receiving the shock of her life.