WHEN CHARLIE BAKERamprsquoS PARENTS ANNOUNCE that theyamprsquore taking him and his sisterampmdashthe drama queen Clarissaampmdashto a cabin in Maine for two weeks Charlie thinks theyamprsquore kidding. Then their mom adds something else. ampldquoThereamprsquos no electricityamprdquo she tells them. ampldquoAnd you leave your cell phones at home.amprdquo They werenamprsquot kidding.When the Bakers arrive at Lake Fortune they are welcomed by a rickety cabin with an outhouse a thunderstorm and a creature in the attic that masquerades as a ghost. ampldquoIs this a scientific experimentamprdquo asks Clarissa. ampldquoIs the government paying usamprdquoBut the true adventure begins when they discover a clue left in a mason jar on a tiny island in the lake. That clueampmdashwritten by The Mystery Travelerampmdashleads them to a second clue. Soon they are on the path of an exciting treasure hunt one that brings Charlie and the bossy Clarissa together for the first time. Not only do they bond as brother and big sister they have the summer of their lives.