Private Business: A Hakim and Arnold Mystery Novel - Perfect for Crime Fiction Lovers & Book Club Discussions" （注：根据跨境电商SEO优化原则： 1. 去掉不必要冠词"A" 2. 明确产品类型"Novel" 3. 添加阅读场景关键词 4. 保持核心关键词"Hakim and Arnold Mystery"前置 5. 使用标题大小写规范）

It is London 2012 and Stratford in the East End is at the centre of the world. But next to the Olympic Park are some of the poorest and most crime-ridden streets in the city. PI Lee Arnold and his assistant, Mumtaz Hakim, run a detective agency in a community fraught with conflict and tension. Approached by a frightened woman, they start to investigate her stalker. But soon their enquiries turn in a far more sinister direction.