The Last Pressure Zone: A Near-Future Survival Thriller

She remembers where the water failed. She does not remember what she changed to make it fail somewhere else.Hydrologist Nadia Reyes has already watched Phoenix come apart. Not in a drought - in a single week, when pressure, power, and public trust crossed a line together. She remembers which hospitals lost water first. She remembers the private company that kept its own system running while whole neighborhoods went dry. And she remembers the concrete outside a distribution gate, where her seventeen-year-old daughter died waiting for water that never came.Then Nadia wakes eighteen months earlier, in a cold conference room, on the morning she approved the emergency plan that helped shape the disaster.At first the future is an advantage. She stops a shutdown. She moves supplies. She forces officials to look at risks they have been deferring for years. But every correction moves the failure somewhere else. A district that survived before loses pressure early. A man she remembers as a profiteer turns out to control equipment the city may not survive without. And the harder she works to protect her daughter, the less she recognizes the future she came back to prevent.When the grid and the water network begin failing together, Nadia has one piece of certainty left: Roy Castellan helped decide who would go thirsty.To keep thousands alive, she may have to leave him in control for six more hours.What this book is- A disaster with a mechanism - compound failure across water, power, treatment, and trust, worked out step by step- Professionals who are good at their jobs: an operations chief, a public health officer, a plant engineer, a security supervisor- A seventeen-year-old daughter who is not a plot device, and who is right about her mother more than once- An antagonist with real guilt and real necessity, who is never asked to confess- Foreknowledge that gets less reliable every time it is usedWhat it is notNo wasteland. No warlords. No bunker. Nobody wakes up with perfect knowledge and wins. The city does not run out of water - it runs out of the ability to move it to the right place, at the right pressure, at the right hour.THE SCARCITY LINE, Book One. A complete story with a resolved ending.Content note: heat injury, medical crisis, and the death of an adult character.