Who is Max Mouse? (1)

Jamal is writing an essay for a high school he wants to get into. Just then, Ghostwriter appears with a warning. Suddenly he is kicked out of the computer. A weird message appears from someone or something called Max Mouse. At the auditorium, the computer teacher informs everyone that a hacker is loose. He warns the students not to use any disks. Strange things start happening: the sports page advertisments for basketball tryouts is changed, and Jasmine is arrested because she is suspected of using stolen credit cards. While Tina was trashing in the computer lab, she finds strange words on a sheet of paper with a wad of gum on it, along with Janice Hall's computer quiz, which was very hard, and she had gotten an A on that quiz. [Why would it be in the trash? --minnymouse35] Then Ghostwriter informs the team that Lenni could be in trouble with the police, and they learn that the words Tina found on the sheet are passwords to get into the school computer.