Book 4 in the CLOUDLAND series, about adventures on a hidden world in the skies, with fantasy origins for our weather. In this book, Earth has been struck by a dangerous lightning weapon, yet the rogue leader who developed it isn’t on Cloudland or Darkland. King Nature summonsn the kids, but they are attacked by storm winds and separated. The girls fly between different lands to help put up a shield, and to provide coordination with the boys, prisoners in the rogue leader’s castle! They will battle new creatures and encounter life-threatening dangers in trying to bring down this madman before he strikes again. And to do it, they will have to team with their former Darkland enemy.