The police launched a full investigation, but all leads turned out to be dead ends. The professor's colleagues were baffled by his sudden disappearance. They described him as a brilliant but eccentric man who kept to himself.

As days turned into weeks, the mystery deepened. A group of students decided to take matters into their own hands. They formed a secret detective club and began to search for clues. Their first stop was the professor's office.

Inside, they found a locked drawer that no one had been able to open. After hours of trying, they finally managed to crack the code. Inside, they discovered a map leading to an old abandoned mansion on the outskirts of town.

Excited by their discovery, the students set out to explore the mansion. As they ventured deeper into the decaying building, they stumbled upon a hidden room. Inside, they found Professor Smith, alive but bound and gagged.

It turned out that the professor had been kidnapped by a former colleague who was jealous of his success. With the help of the students, the police were able to apprehend the culprit and bring the professor back to safety.