Dorso Clayman opened his locker door and a dead body, a very smelly and partially dissected dead body, was hanging inside. Thirty seconds later, it was gone, with only the stink remaining. Someone has been playing jokes on seventh grader Dorso and his friend, Frank, and the jokes are getting more serious. Somehow people from the past are interacting with Dorso and dragging him and Frank back into the past in ever more dangerous situations. Will Dorso and Frank be able to stop these 'Time Hackers' before they destroy the world?
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