orologio en CB01 OFFICIAL. It's a high school summer job for Julia and Alexander - the chance to earn money and work with eccentric, charismatic social studies teacher, Mr. Zenidro. But something else awaits them in the empty, yet mysterious school building. As the past and present begin to blur together so do sanity and madness, and Mr. Zenidro draws them into a lesson on history one can't find in books.