Changes

We're in Northern Thailand, at a place called Nampangsa, near Chiang Rai. You might know the area better as the Golden Triangle, where Myanmar, Laos and Cambodia meet and there's a huge crowd, partly because Thailand's Prime Minister, Chairat Anantara, is speaking. On the periphery of the crowd, Kate St George, her cousin, Lord Charles and his wife, Nina, pause to take a photo which includes a monk sleeping under a tree. A pleasant family holiday, you might be thinking - but Charles St George is the founder and CEO of Global Cuisine and Kate is the HR Manager. They're also deeply involved with the National Crime Agency and the undercover Secret Intelligence Unit, where Kate's brother, Ethan, is the Director of Intelligence. None of this stops the monk from adding botulism to the food which is going to be served to the crowd. Only Kate's quick thinking averts mass deaths, but Peter, the only child of her best friend, Carmen Tan-Williams, will die.

''Killer in the Photo'' grabbed me before I got to the bottom of the first page and it didn't let go until I'd finished. When you start reading you'll wonder if there's going to be a cast of thousands but have faith, you're in safe hands with husband-and-wife writing team Annette Mark. Relax and enjoy the story. There's a strong police team, headed up by DI Patrick Ramsay. He's an excellent detective but not so good on the admin side. Kate St George had a fling with him some years before when he was an undercover officer and it ended when he thought she was taking heroin. Backing Ramsay up are DS Paul Billinghurst, another excellent detective but with a strange ability to annoy, and DS Elliott Thompson, a computer expert.