Vanished - Classified Author:Terry Deary Fact or fiction? You decide! Classifieds blend a fictional account with fact files, biographies, statements from witnesses, and debriefingsallowing readers to make up their own minds about intriguing unsolved mysteries. Access to classified docu-ments will help unravel the mysteries behind the most intriguing events of recent times. Desperate... more » to end World War II, the U.S. Defense Department embarked on a bizarre experiment to build an invisible warship. Fifty years later, computer hacker Alice Henreid investigates the strange circumstances of the Philadelphia Experiment. How far will the govern-ment go to keep this story from being told?« less