Assassin-for-hire Sonja Kurtz is on the run. Kurtz, an ex-soldier turned mercenary, is given a high profile job—to kill the president of Zimbabwe. But it's a set up, the assassination attempt fails, Kurtz has been burned and her exfiltration plan are in ruins. Kurtz now heads for her only place of refuge, the Okavango Delta in the heart of Botswana. Determined to lay low and take it easy, Sonja discovers that her beloved Delta is on the brink of destruction. In a bid to halt a project that would destroy the Delta's fragile network of swamps and waterways, she is recruited as an ‘eco-commando.' Soon she finds herself caught in a web of intrigue as deadly as the one she left behind her. Caught between her ex-lover Sterling, Martin Steele, her mercenary commander, and a TV wildlife documentary host ‘Coyote' Sam Chapman who blunders out of the bush in a reality show gone wrong. Instead of escaping her violent past, Sonja is now surrounded by men who are relying on her killer instincts. Having come to peace, she finds herself in the midst of a deadly war… and it is not only the survival of the Delta that is at stake. The Delta is a white-knuckle thriller from international bestseller Tony Park, the new "master of adventure," in his North American debut.

Sonja Kurtz - former soldier, supposedly retired mercenary - is in Vietnam carrying out a personal revenge mission when her daughter sends a call for help. Emma is on a dig at the edge of Namibia's Etosha National Park studying archaeology and she's discovered a body that dates back to the country's liberation war of the 1980s. The remains, identified as Hudson Brand, are a key piece of a puzzle that will reveal the location of a modern-day buried treasure. A find people will kill for. Sonja returns to the country of her birth to find Emma, but she's missing. Former CIA agent Hudson Brand is very much alive and is also drawn back to Namibia to finally solve a decades-old mystery whose clues are entombed in an empty corner of the desert.

A heart-racing thriller from the master of adventure One mission ... countless enemies. Former mercenary Sonja Kurtz is hired by business tycoon Julia Clyde-Smith to head an elite squad. Their aim: to take down Africa's top poaching kingpins and stop at nothing to save its endangered wildlife. But as the body count rises, it becomes harder for Sonja to stay under the radar and she is targeted by an underworld syndicate known as The Scorpions. When her love interest, safari guide and private investigator Hudson Brand, is employed to look into the death of an alleged poacher at the hands of Sonja's team, she is forced to ask herself if Julia's crusade has gone too far. From South Africa's Kruger National Park to the Serengeti of Tanzania, Sonja realises she is fighting a war on numerous fronts, against enemies known and unknown. So who can Sonja really trust?

Greed. Joanne Flack is on the run - suspected of stealing a rare African plant thought to be extinct and worth millions of dollars. Danger. Sonja Kurtz is hired by the CIA to hunt down Joanne and find the link between the missing plant and a terrorist group hiding out in South Africa. Treachery. Joanne is a member of the Pretoria Cycad and Firearms Appreciation Society who take it upon themselves to track down the plant ... and the traitor in their midst who is willing to kill for it.