a group of kids search town for clues to a mystery

A group of teenagers are trying to solve a mystery of a puzzle created and left to them by the dead boy.

A trio of kids have many exciting adventures while exploring a spooky mansion in the hope of finding their missing friends.

Set in a small town in middle Oregon, eight kids who are well acquainted with the paranormal face off against a terrifying psychic threat. While the Twins fight to defend their family from destruction while four out of towners find themselves stranded in a broken down car in the middle of nowhere and two junior psychic detectives, who are on a top secret mission, get inadvertently mixed up in their high stakes danger.

A group of teenagers dream of adventures and experiencing something unusual, mysterious and romantic. The boys play treasure hunters and detectives in an old park adjacent to a modern housing estate. By accident, the heroes find the trail of a youth gang that stole the documentation of a sensational preparation that can be used in the preparation of animal feed. The gang members manage to suspect the inventor of the preparation, the engineer Tyc. His son, Andrzej, and his friends decide to expose the real criminals and find maps that are to indicate the place of the hidden treasure.

The city is filled with countless urban legends. Strange incidents that occur in the midst of these legends lead people into a labyrinth... It is the five young detective hatchlings who take on these difficult cases. Overflowing with intellectual curiosity, they make the most of their abilities. They are full of intellectual curiosity and show their abilities to the fullest as they run through the city and get to the bottom of the mystery. And what lurks behind the scenes is a professional criminal planner... Through fierce battles with the enemy and encounters with various people, they are sometimes hurt, but they gradually grow up. This is a pop youth mystery that depicts the friendship and adventures of a group of talented detectives.

In a quiet resort town Haapsalu four kids are spending their summer holidays together. Suddenly they are dragged into events that started in the 15th century in the local bishop's stronghold. The children must solve a difficult mystery of a clock robbery and they have to find a treasure that has been lost for centuries and contains a formula of making gold.

A group of former Encyclopedia Brown-style child-detectives struggle to solve an adult mystery.

Four children - Mari, Sadu, Olav and Anton form a secret society to play hide-and seek games invented by Mari's grandfather, a professor at the university. When the city is attacked by a mysterious poison which turns adults into children our gang embarks on a quest for the antidote.

In need of cash to decorate their hut, young sleuths use a map to search for treasure