JACK'S GAME by MARIA FUENTES

It’s her first day of work and she meets Jack that is in the garden. Six months later there is a strange paper getting out of the printer; it contains some codes. Then Jack disappears and everything was different in the office. Suddenly the phone rings and it’s the boss telling her to go to his office for telling her not come again. The next day, she goes to the office again just to investigate about the problem and now she guesses what are these codes.