Tan Kok Seng's Son of Singapore & Man of Malaysia

I picked up a couple of gems at Bras Basah Complex yesterday. I got a copy of a first edition of 'Son of Singapore' (Heinemann 1972) as well as the first reprint edition of 1974. I also got  it's sequel 'Man of Malaysia'.
Each of the book was priced at about $7.50. Right after my purchase, the book store owner began removing the price tags for the remaining  'Son of Singapore' on the shelf. When I asked him if he is increasing the price, he replied yes, and is intending to up the price to $18.00 per book. I guess I just spoiled the market.   

I have been looking for Tan Kok Seng's 'Son of Singapore' for a while. My family used to have this book and I remember reading this book again and again as a kid. Unfortunately, over the years, somehow it got lost or was thrown away. Nowadays, this book is out of print and hard to find.

In his simple language, TKS tells of his life story, and along the way, also told the story of Singapore from WWII till the 1950s and 60s. It is surprising that this gem of a book is out-of-print.