When the world's future hangs in the balance, how far will a mother go to save her child?

At a glittering gala during Rio de Janeiro's high-stakes climate summit, renowned environmentalist Dr. Helena Becker's celebration is cut short by a devastating abduction. Her 14-year-old daughter, Sofia, is taken by masked kidnappers, leaving behind a chilling ultimatum: approve the controversial global treaty, or Sofia dies.

Enter Claire Marshall, a former CIA operative haunted by the loss of her own daughter, who reluctantly agrees to take on the dangerous mission. Partnered with Diego Nunes, a fearless journalist with deep ties to Rio's volatile underworld, Claire dives into a race against time to uncover the truth. From the chaos of Carnival to the treacherous favelas, Claire and Diego navigate an electrifying web of eco-terrorists, shadowy corporate conspiracies, and their own buried traumas.

As the clock ticks down, the stakes grow higher, and the line between hero and villain begins to blur. With the fate of Sofia, the summit, and the planet itself at risk, Claire faces an impossible choice—one that demands the ultimate sacrifice.

A pulse-pounding thriller filled with heart-stopping action, moral complexity, and unforgettable characters, The Rio Ransom will leave you breathless and inspired. Perfect for fans of The Night Agent and The Girl with the Dragon Tattoo, this gripping novel will keep you turning pages late into the night.