The Sahara Messenger.

Malik is the best at what he does because he is invisible. In the vast, unforgiving expanse of the Sahara, he is a ghost on a motorcycle, delivering packages that others cannot-no questions asked. But his latest assignment comes with a warning that changes everything: "Do not arrive after sunrise."With four hundred miles of treacherous sand, jagged volcanic rock, and lethal heat between him and his destination, Malik is used to the elements.
He is not used to being the target of a high-speed international manhunt. Pursued by the ruthless Directorate-a shadowy organization that controls the region's water and the lives of those who drink it-Malik discovers that the metal box he carries holds a devastating secret. Inside is the proof of a trafficking network that turns human lives into "Water Debt."From the narrow, deadly passes of the Black Ridges to the blinding white void of the Amadror Salt Flats, Malik must outrun armored trucks, high-tech drones, and the relentless sun itself.
As he faces betrayal at every oasis and finds unexpected allies among the desert's nomads, he realizes he is no longer just a messenger. He is the only hope for thousands of families marked for erasure. In a heart-pounding race against time where every mile is paid for in blood and gasoline, Malik must make a final, impossible choice: remain a man who disappears, or become the witness who sets the desert on fire with the truth.