Jacob's job is to untangle ledgers that hide evidence of corruption in the highest levels of the company ranks on Dejima. This does not make him popular, to put it mildly. Life for Jacob soon becomes even more difficult as dramatic events unfold. It's a good thing that he has a strong moral conscience and stout courage. It is his heart that is Jacob's greatest challenge; he falls in love with a Japanese woman who studies medicine on Dejima.
The intricate cast of characters, the fascinating setting, the complex plot that includes evil practices at a secretive Japanese shrine -- all of these combine in a fabulous story. A very rewarding read.