The teacher vanished. During class in Chicago 3 years later, student finds this in blackboard. Michael Harrison pushed the loose blackboard panel back into place, but it wouldn’t stay. Room 237 at Lincoln High School had seen better days.

The 17-year-old had volunteered to help clean the old classroom during summer break in July 2017, 3 years after the incident that changed everything at the school. This thing is falling apart,” Michael muttered, examining the wooden frame behind the board. As he lifted the panel again, something crinkled inside the wall cavity. His fingers found an envelope wedged between the frame and the drywall.

The envelope was yellowed and bore the handwriting, “If something happens to me, David Thompson, March 15th, 2014.” Michael’s hands trembled. David Thompson had been his 8th grade English teacher. The man who disappeared during fourth period on March 20th, 2014 while teaching Shakespeare to 30 students. One moment he was writing on the blackboard. The next he was gone. The classroom door stood open, his coffee cup still warm on the desk.

What are you doing in here? Thomas Anderson, the head janitor, appeared in the doorway. His weathered face showed surprise at finding a student in the restricted classroom cleaning like Principal Morrison asked. Michael replied quickly sliding the envelope into his pocket. This blackboard panel keeps falling out. Thomas nodded grimly. That room’s been nothing but trouble since Thompson vanished. Principal’s been wanting to renovate it for years.

After Thomas left, Michael opened the envelope in the empty hallway. Inside was a key and a note. Safety deposit box 427, First National Bank, Michigan Avenue. The truth about the missing funds. They know I found out. Janet Morrison and Robert Chen are involved. If you find this, call Detective Williams immediately.

Michael stared at the paper. Missing funds. He remembered the schoolboard meetings his mother had attended in 2014, discussing budget shortfalls and unexplained accounting discrepancies. Thompson’s disappearance had overshadowed those financial concerns.

The police investigation in 2014 had concluded that David Thompson suffered some kind of mental breakdown and left voluntarily. His car was found at O’Hare airport. Security footage showed a man resembling Thompson boarding a flight to Denver, though the image quality was poor. His credit card was used once in Colorado. Then, never again. Michael had been one of Thompson’s favorite students.

The teacher often stayed after class to discuss books and writing. Thompson never seemed unstable or unhappy. He talked about his weekend plans, his garden, his elderly mother who lived in Oak Park. Michael, what are you still doing here? Principal Janet Morrison’s voice echoed down the hallway.

She was a tall woman in her 50s, always impeccably dressed with graying hair pulled back severely. Just finished cleaning room 237, Principal Morrison. Michael kept his voice steady despite his racing heart. Good. We need that space ready for the new semester. She paused, studying his face. You were one of Mr. Thompson’s students, weren’t you? Yes, ma’am. Terrible situation.

Such a shame when teachers crack under pressure like that. Her tone was dismissive. Mental health issues are more common than people realize in our profession. After she walked away, Michael pulled out his phone and searched for Detective Williams. Sarah Williams was still with Chicago PD working cold cases. Her office was downtown. That evening, Michael called the detective’s number.

After explaining who he was and mentioning Thompson’s note, she agreed to meet him the following morning at a coffee shop near the police station. Detective Williams was a compact woman in her 40s with short brown hair and sharp eyes. She listened intently as Michael showed her the envelope and explained how he found it. David Thompson, she said slowly.

I remember that case. It was transferred to me 6 months ago when it went cold. Officially, he’s listed as a voluntary missing person. Do you think he really just left? Williams studied the key and note. Something always bothered me about that case. Thompson had no history of mental illness. His bank account showed steady, predictable spending patterns.

He had season tickets to the Cubs. His mother said he called her every Sunday at exactly 300 p.m. for 20 years, and he stopped calling the day he disappeared. She pocketed the key. This safety deposit box number might give us some answers. I’ll need a warrant to access it, which could take a few days.

In the meantime, don’t mention this to anyone at the school. Michael agreed, but his mind was already racing with questions. What funds were missing? How were Principal Morrison and Vice Principal Chen involved? And most importantly, what really happened to David Thompson on that March afternoon in 2014? The next morning, Michael researched everything he could find about the school’s finances in 2014.

News articles mentioned a state audit that found discrepancies in federal grant money allocated for special education programs. The audit report stated that approximately $200,000 could not be properly accounted for, but blamed poor recordkeeping rather than theft.

He also found Thompson’s personnel file online through a Freedom of Information request his journalism teacher had taught him about. Thompson had been employed at Lincoln High for 12 years. His performance reviews were exemplary. The last entry dated March 18th, 2014 noted that he had requested a meeting with the district superintendent for March 21st. March 21st was the day after Thompson disappeared. The meeting never happened. Detective Williams called Michael 3 days later.

I got the warrant. Meet me at First National Bank tomorrow at 10:00 a.m. And Michael, bring someone you trust with you. This is bigger than a simple missing person case now. Michael brought his older sister, Emma, a journalism student at Northwestern University.

She had always been fascinated by Thompson’s disappearance and had written a paper about it for her investigative reporting class. The safety deposit box contained a stack of documents, a digital camera memory card, and another note from Thompson. Williams photographed everything before they examined the contents. The documents were photocopies of financial records from Lincoln High School’s special education department.

Federal grant applications, expense reports, and bank statements covered the period from September 2013 to March 2014. Thompson had highlighted numerous discrepancies in red ink. Look at this. Emma pointed to an expense report dated February 2014. They claim to purchase specialized computer equipment for $45,000, but there’s no delivery receipt or inventory record. Williams studied the bank statements. These deposits don’t match the grant dispersements.

Someone was redirecting federal money into personal accounts. The memory card contained photographs of additional documents, including emails between Principal Morrison and Vice Principal Chen, discussing handling the Thompson situation. One email dated March 19th, 2014 read, “He’s getting too close. We need to imp

lement our contingency plan immediately.” Another email from Chen to Morrison sent at 11:47 p.m. on March 19th. Flight is booked. Denver package ready for pickup. Make sure his car gets to the airport before morning shift change. Thompson’s final note, dated March 20th, 2014, was written in shaky handwriting. “They know I copied the documents.” Morrison offered me a sbatical in Colorado today. Said the district would pay for everything, including plastic surgery to help me start fresh.

When I refused, Chen mentioned my mother’s address in Oak Park. I’m hiding this evidence before fourth period. If something happens to me, they killed me. Williams immediately called her partner. I need backup at Lincoln High School. We have evidence of murder and embezzlement.

But when they arrived at the school, they found Principal Morrison in her office, calm and prepared. Detective Williams, how nice to see you again. I heard you were looking into poor David’s case. Such a tragic situation. We need to ask you about some financial irregularities in 2014, Williams began. Morrison’s expression didn’t change. Of course, though, I should mention that Vice Principal Chen is no longer with us.

He passed away from a heart attack 2 years ago. Very sudden. He was only 53. Michael felt his blood run cold. Another convenient death. We also need to discuss your communications with Mr. Chen regarding David Thompson, Williams continued. I’m afraid I don’t recall any specific communications. It was 3 years ago and we dealt with many personnel issues.

Morrison pulled out a business card. I think it would be best if you contacted the district’s legal council before asking any more questions. After they left the school, Williams was visibly frustrated. Without Chen alive to corroborate the emails and without Thompson’s body, proving murder will be extremely difficult. The embezzlement case is solid.

But Morrison will claim Chen was the mastermind and she was an unwitting victim. That afternoon, Michael returned to Thompson’s old classroom. Something had been bothering him about the timeline. Thompson disappeared during fourth period, which started at 12:15 p.m., but according to his class schedule, he should have been teaching fifth period at that time.

Michael found Jennifer Brooks, who had been Thompson’s colleague and friend. She was now the department head for English. Miss Brooks, can I ask you about Mr. Thompson’s schedule on the day he disappeared? Jennifer paused in grading papers. That’s something that always troubled me, Michael.

David was supposed to teach my fifth period class that day because I had a dental appointment. We switched schedules that morning, but he vanished during what should have been my class, not his. Did you tell the police this in 2014? I tried to, but they said it wasn’t relevant. They seemed convinced he had a breakdown and left voluntarily.