Book five in Stephen King's Dark Tower series isn't the place to jump in if you haven't read the first four. For those who have, this continues the saga of Roland the Gunslinger and his quest for the Tower, but it's mostly a diversion from the main story. The residents of a town called Calla Bryn Sturgis on the borderlands of Mid-World seek help from Roland and his companions. Every 20 years, a raiding party known as the Wolves of Thunderclap ride through Calla, taking one from each set of twins who've come of age. The abducted twin is returned a few weeks later, horribly changed mentally and physically. The Wolves are due in 30 days and Roland must devise a plan. Although this series is less popular than King's other work, all his trademark horror and suspense is here.