The Black Lake by Hella S. Haasse
Amid the lush abundance of Java's landscape, two boys spend their days exploring the vast lakes and teeming forests. But as time passes the boys come to realize that their shared sense of adventure cannot bridge the gulf between their backgrounds, for one is the son of a Dutch plantation owner, and the other the son of a servant. Inevitably, as they grow up, they grow estranged and it is not until years later that they meet again. It will be an explosive and emblematic meeting that marks them even more deeply than their childhood friendship did.