Erwin Chan is the author of Zac Lee and the Legend of Yamashita’s Gold, a fast-paced teenage novel that whirlwinds after Zac Lee and his friends in their quest to discover valuable loot left over from the Japanese occupation before their enemies do. Aside from being an absorbing page-turner, the novel also brings Zac and his friends to a number of little-known locations in Singapore while uncovering the surprising flotsam and jetsam of Singaporean history. We speak to Erwin Chan about his favourite “nooks and crannies” in Singapore, the mysteries of the lives of Singaporean lighthouse-keepers, and how there’s “more to…