Is there a book three to 'The Power of One'?

Is there a sequel to The Power of One? It’s interesting that you mentioned that, many people don’t realize that there is a sequel called Tandia, which I wrote in 1991. Without spoiling it for you, Tandia continues Peekay’s adventures as well as introducing some very interesting new characters. Many people who have read it say they’ve enjoyed it more than The Power of One!
https://en.wikipedia.org/wiki/Tandia
I don't believe there is a third book. "The Power of One to One" is not related to "The Power of One."

(Bryce Courtenay) recently, together with Ian Kennedy has written the Power of One to One and invaluable business book and a good read. He has recently completed writing his historical novel titled the Potato Factory which is his first book in a trilogy which was released on November 8th, 1995.
[talentonline.co.nz/speakersnz/res/bryce-courtenay.html] link no longer exists