500 words from...is a series of guest posts from authors writing about Asia, and published by Asia-based, or Asia-focussed, publishing houses, in which they talk about their latest books. Here Ann Bennett writes about Bamboo Island, the second book in her World War II South East Asian trilogy.  Last year, in the Year of the Horse, the first book, Bamboo Heart, won the inaugural Asian Books Blog Book of the Lunar New Year. The trilogy is published by Monsoon, a company special