The Unnumbered Corridor, Part 5: The Voice from the Lift
A forgotten speaker crackles above the lift, carrying a message from the past—and a clue to Klara’s missing records.
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The Big Mistake Club, Part 5: When the Project Began to Smell
A fruit experiment begins to smell, and Adam’s quick fixes make the classroom even more surprising.
Mina and the Star Key, Part 5: The Missing Colour
Mina enters a secret garden where the colour blue has vanished. To find it, she must stop rushing and listen to the quiet.
The Zero Signal, Part 4: The Invisible Minute
A school presentation fails just as Denis pushes his power too far—and an unexplained signal answers from beyond the cables.
The Unnumbered Corridor, Part 4: The Room with the Covered Mirror
A hidden room appears in the unnumbered corridor, where Nora, Filip and Ben find a mirror showing a hallway from the past.
The Big Mistake Club, Part 4: Secret Mission: The Class Plant
Adam, Ela, and Samo launch a secret mission to save their drooping class plant—but their watering can soon becomes the biggest mystery in school.
Mina and the Star Key, Part 4: The Moon-Dust Bridge
Mina finds moon dust beside a quiet stream and learns that even a magical bridge must be built one small step at a time.
The Zero Signal, Part 3: What a Touch Can Do
Lea discovers that a touch can redirect electricity—but every use of her new ability comes at a cost.
The Unnumbered Corridor, Part 3: Footsteps Above the Ceiling
A hidden panel reveals a metal passage above the ceiling—and clues connected to a girl named Klára.
The Big Mistake Club, Part 3: The Day of Swapped Name Tags
A gust swaps the children’s name tags, and Adam, Ela, and Samo must rescue a school event before the corridor turns into a maze.
