Sprachreise

You didn't start learning German to memorize verb tables. You started because you wanted to understand a new world.

Mia Keller has been in Berlin for almost a year. She has new friends, a new school, and a family secret that won't stay buried. But the biggest mystery is just beginning.

In Book 9 of the Sprachreise series, Mia and her friends discover a strange stranger who knows the name Klaus. Who is he? How does he know Mia's long-lost great-uncle? And why does he disappear into the subway every single day?

The group makes a plan. They split up. They follow the clues. What they find will change everything they thought they knew.

Das Geheimnis der U-Bahn takes you deeper into the Berlin Chronicles. You will ride the U-Bahn with Mia. You will search for answers in the city's hidden corners. You will feel the tension of the mystery and the warmth of friendship.

And you will learn German without ever feeling like you are studying.

This is not a textbook. This is a story. A gripping, character-driven YA mystery that happens to be written in carefully graded A1 German. Every new word is glossed. Every page supports you. You are never lost. You are never bored.

If you have ever wanted to read a real book in German, this is where you start.

By the time you finish Das Geheimnis der U-Bahn, you will not just know more German. You will be desperate for Book 10.

What makes this series different?

• One continuous story across 20 books - not disconnected short stories

• A real cast of characters you will care about

• Grammar and vocabulary introduced exactly when the story needs them

• English support on every page - you choose when to use it

• No drills. No exercises that feel like homework. Just story.

Perfect for:

• Teenagers and adults starting German from zero

• Self-learners who hate flashcards

• Anyone who wants to read German without a dictionary

• Heritage speakers reconnecting with the language

• Classroom use - engaging enough for teens, rigorous enough for teachers

Book 9 is part of the A1 level of the series. Start with Book 1, or jump in here - each book recaps what came before.

Read German. Live German.