Russian-born Natalya Andreevna Shikolenko is one of the top-ranked tennis players in the world.

When we first meet her, Natalya is playing Tania Likamolova in the Quarter Finals of the US Open. But unknown to them both, the game is about change course in a way that they could not have imagined.

Well, perhaps Natalya should know better. This super-fit, intelligent, raven-haired beauty with a strong Russian accent is no ordinary tennis player. On the surface, she is the consummate tennis professional: successful, dutiful to her sponsors, her fans, the media and her fellow competitors, and entertaining to watch on court. Off court, this dark horse hides a secret that is slowly consuming her, and which will soon pull her opponent Tania down into the vortex caused by her activities.

Why does a tennis player like Natalya choose to practise the Russian martial art of the Spetsnaz - the Russian special forces? Is it just for fitness?

What is Natalya's secret business, and will Tania be able to survive the downdraft without losing her character? Find out by reading the book available through this link.