All schools have their own stories. Some of these stories are told in the schoolbooks, while others may be discovered through the joyous voices of the students playing in the yard, or some may be hidden in places even we might have never thought to look at. Now it is the time for Olivia Parker, Ethan Miller, and Sophie Reed to reveal one of those stories.
Once the old books and precious memorabilia of the school disappear, friends begin their investigation through bright classrooms, crowded corridors, quite library, and even public yard where little kids have been playing for decades. In the course of their search, the children find lost messages, pictures, and valuable memorabilia left behind by previous students. But the discovery is far beyond just trinkets. Each of the hidden pieces brings them closer to an old time capsule that got hidden many years ago and contains unforgettable memories that formed due school history.
The investigation brings new interesting findings every time, telling the story about the school and people who went through these corridors and learned together with their schoolmates long ago before them.