Drones, dams & destruction

"While Sheriff Marjorie's guards grow ever more ruthless, a rebel spy has unearthed her secret plan to flush Robin, his fellow rebels and tens of thousands of desperate refugees out of Sherwood Forest. Robin and his best friend Marion join an audacious scheme to scupper a flood that will ruin lives and destroy millions of acres of forest. But it's the most daring operation Robin has ever undertaken, and the rebels may have bitten off more than they can chew"--Back cover.