Once upon a time, in the middle of the great, blue ocean, there was a mysterious prison for kids. Lili, a brave 11-year-old girl, was trapped there with her friends Marta and Adam. They discovered secrets and planned an escape, facing danger and conflict. Determination and courage were tested. The book ended with a dramatic moment as Lili and Marta escaped on a trash capsule, drifting on the ocean, leaving readers wondering about their fate.

Lili was a clever girl with sparkling brown eyes and curly brown hair. Marta was her loyal friend, a bold girl with bright blue eyes and long blond hair. Adam was a daring boy with mischievous green eyes and messy red hair.

Lili, Marta, and Adam explored the prison, finding hidden passages and secret rooms. They encountered guards, solved puzzles, and made a plan to escape. Their adventure was thrilling and full of surprises.

As they executed their plan, they faced thrilling chases, narrow escapes, and daring rescues. They worked together, showing remarkable teamwork and bravery. Their determination never wavered.

Finally, Lili and Marta found a discarded trash capsule and decided to use it as their way out. They packed their few belongings and set adrift on the vast ocean, leaving behind the prison and its secrets.

As they floated on the ocean, they faced stormy weather, rough waves, and uncertainty about their future. But they also felt a sense of freedom and hope. The friends held onto each other, ready to face whatever lay ahead.

Lili and Marta looked at each other with determination in their eyes. They were unsure of what awaited them, but one thing was certain - they would face it together, armed with their courage and friendship.