The Baron on Board — John Creasey

The Mask Of Sumi
had been worn by the newly crowned rulers of Sumi for hundreds of years, but now the princes no longer ruled that small oriental country. And someone with an eye for profit as well as beauty was arranging for the sale of the Sumi crown jewels. In England, John Mannering -- otherwise known as the Baron -- was waiting for the jewels, when murder stepped in, twice! And Mannering found himself in the midst of some very messy oriental politics -- and dangerously close to dying!