In this series finale, pathologist Dr. Lily Robinson races around the globe to hunt an assassin who, like her, finds poison the weapon of choice. A world-renowned climatologist is found dead off the Great Barrier Reef of northern Australia weeks before he's set to deliver his earth-shattering findings at the international Climate Council conference. Was it greed to maintain the status quo of fossil fuels - or revolutionary new science - that motivated his murder? Can Lily Robinson stop the killer before another climate scientist dies? With operative and lover JP Marchand at her side, Lily uncovers a cunning plot that endangers world order, and changes the trajectory of her life - forever. Lily Robinson is recovering from her last mission, dwelling on her past, and second-guessing her life choices. Does the good of the many truly outweigh the good of the one? She'd thought so. So, when a prominent climate scientist dies under mysterious circumstances, she is easily persuaded to get back into the game and work with the U.S. Government's special anti-terrorism team.The trail takes Lily first to Cape Town, South Africa, then to Sydney, Australia, and finally to Brussels, Belgium, the Climate Council's conference venue. Yet, globetrotting plays havoc with Lily's memories - her time with Rose's father, Charles, her initial recruitment by the legendary Pixie Dust, and her relationship with her partner, JP.Lily comes full circle as she learns the truth and confronts the killer. She knows how it started, but how will it end?