Discover the Magical Adventures of Anna – The Young Detective With a Big Heart

When it comes to children’s literature, few characters capture the imagination like Anna, the clever twelve-year-old heroine created by Thomas W. Krüger. With her sharp instincts, insatiable curiosity, and boundless courage, Anna takes young readers on unforgettable adventures filled with mystery, history, and just the right touch of fantasy.

                                     Who is Anna?                                   

Anna lives in Hamburg with her family, but her ordinary life often turns into extraordinary adventures. Whether exploring castles, traveling abroad, or stumbling into magical worlds, Anna always finds herself solving mysteries that even adults – and sometimes the police – cannot crack.

She’s brave, intelligent, and determined, though sometimes stubborn, which makes her both relatable and inspiring to young readers. Anna’s bond with her brother Felix adds warmth and humor, while her sibling rivalry with her sister Laura adds depth to her everyday life

The Gemstone Series – Four Sparkling Adventures

Thomas W. Krüger’s Gemstone Quartet forms the heart of the Anna series. Each book combines thrilling detective work with fascinating historical and fantastical elements:

• Anna and the Sapphire of Drachenfels Castle – A weekend trip turns into a time-travel mystery at Cologne Cathedral.

• Anna and the Ruby of Darkness – A Transylvanian summer vacation leads to eerie secrets in a strange castle.

• Anna and the Maharaja’s Emerald – A stolen necklace drags Anna into a dangerous investigation.

• Anna and the Diamond of Winterland – Talking animals, enchanted castles, and a missing winter test Anna’s courage.

These stories are perfect for children who love adventure, mystery, and a touch of magic 

Beyond the Gemstones – Anna’s Expanding Adventures

The Anna universe doesn’t stop there. From “Anna and the Lions of Venice” to “Anna and the Mask of Cleopatra”, and even “Anna and the Ghost of Marksburg”, the books continue to take readers across Europe and back in time. Each new release introduces fresh challenges, cultural backdrops, and thrilling mysteries.

Why Children Love Anna’s Stories

• Strong role model: Anna shows kids that bravery, intelligence, and curiosity can overcome even the trickiest challenges.

• Educational value: Blending history, travel, and culture, the books spark curiosity about the wider world.

• Relatable themes: Sibling rivalry, family vacations, and school life make Anna’s extraordinary stories feel grounded in everyday life.

Parents appreciate that the series encourages reading, critical thinking, and imagination, while children simply love following Anna’s daring adventures.

Where to Buy the Anna Books

The Anna series is available in print and online. You can explore the full collection here on our shop and give your child the gift of adventure, mystery, and discovery. Whether as a birthday present, holiday gift, or simply as a new bedtime favorite, Anna’s stories will keep young readers turning pages late into the night.

👉 [Shop the Anna Books Collection Now] : https://baderstreet.shop/collections/anna-series

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