Write an exposition.

Characters: Bob, Prankster, Principal, Students
Setting: School
Problem A person is pranking everyone, and Bob is trying to find out who it is.

In the bustling halls and classrooms of Lincoln High School, an eerie tension had settled. Pranks, one after another, were perplexing the entire student body. From silly string cascading from unsuspecting lockers to mysterious disappearing textbooks, the relentless prankster was wreaking havoc. Amidst the chaos, one individual was determined to unearth the culprit behind these mischievous acts, and his name was Bob.

Bob, a senior with an unquenchable curiosity and a knack for detective work, had taken it upon himself to solve this seemingly perplexing mystery. As a self-proclaimed unofficial investigator, he was determined to identify the mastermind and put an end to their relentless shenanigans.

With his Sherlock Holmes-inspired cap pulled low, Bob began his quest for the truth. Questioning his fellow students proved to be tricky, with each person either unaware or unwilling to disclose any information. The fear of being caught in the prankster's crosshairs had instilled a sense of silence in the school.

Undeterred, Bob scoured the classrooms, hallways, and even the obscure corners of the library, analyzing clues left behind by the elusive prankster. Although seemingly insignificant, hidden traces of their pranks offered tidbits of information that Bob meticulously collected. But the true identity remained infuriatingly elusive.

Bob's determination did not go unnoticed. The school's principal, aware of the ongoing chaos, called him into his office, hoping to tap into Bob's burgeoning detective skills and put an end to the pranks once and for all. In the office, Principal Johnson, a stern yet concerned figure, listened intently as Bob explained his theories and methods.

"A carefully executed plan is required to catch this miscreant," Principal Johnson suggested, his voice tinged with a mix of worry and frustration. "We need to put a stop to these pranks before they escalate further and endanger the well-being of our students."

Recognizing the gravity of the situation, Bob assembled a small team of close friends who shared his dedication to solving the mystery. Together, they brainstormed strategies, analyzed patterns, and devised traps to catch the prankster red-handed.

As word of their mission spread, the student body gained hope, some even placing bets on who the prankster might be. The halls of Lincoln High were abuzz with anticipation, as everyone eagerly awaited Bob's triumphant unveiling of the elusive prankster's identity.

With time running out and nerves frayed, Bob's relentless pursuit finally bore fruit. Careful analysis and a pinch of luck led him to a crucial piece of evidence, pointing to the one person no one had ever suspected - a student considered amiable, innocuous even - the last person anyone would suspect.

Armed with this revelation, Bob confronted the prankster, revealing their true identity to a captivated audience in the school courtyard. Shock and disbelief washed over the gathered students, as they witnessed the unmasking of the prankster who had plagued their days.

In the wake of this revelation, Lincoln High School slowly returned to its normal rhythm, free from the pranks that had held it hostage. Bob's unwavering determination and inquisitive spirit had not only solved a mystery but brought peace and unity to a divided school. As he walked through the halls, his detective cap held high, Bob had solidified his place as the hero of Lincoln High, even if his identity as the prankster's nemesis remained his secret alone.