A new year is beginning at Lincoln High School and first on the scene are the custodians who must prepare everything for opening day. The staff is divided between long time senior members and a younger crew. Bill is the newest custodian, who must adjust to the many personalities of the veterans, as he learns the history and duties of the job. To the others, Bill appears too serious, preferring to read rather than mingle with the other custodians. Sarge is the manager of the group and tries to be a bridge between his staff and the headmaster. In addition to their daily work schedules, the men find time for periods of recreation during breaks. Big Jim is the oldest, and tells many stories about happenings at Lincoln High. He isn't talking, but rumor has it that the school is haunted. What lurks in the corridors of Lincoln High? Can a multi-cultural staff of custodians supervised by a pompous headmaster work together to unravel the mystery? Read Mystery at Lincoln High and learn the answer.