At last, the mystery surrounding Astro's faithful dog Sternschnuppe is solved. But no sooner is one worry behind them than exciting news arrives: The famous scientist-astronaut and inventor Viktor Romaneschko is returning to the lunar station after five years in space. To Astro and Nolan, he is a true role model – and suddenly they have the chance to meet their great hero in person.
And that's not all: the big Moon Festival is just around the corner!

Between extraordinary inventions, talent competitions, and plenty of delicious treats, there is so much for Astro and his friends to discover. They even get a glimpse into the everyday lives of real space pioneers.

But while everyone is celebrating, Erik Stone is already putting his next plan into action. And this time, he gets Astro into a situation that suddenly turns a joyful festival into a dangerous adventure.

Marvel, discover, explore – with Astro right in the middle of it all, learning that even the most wonderful day on the Moon can take an unexpected turn.

Martin Wintersberger, the 'Rocket Man', combines his love of space with a mission: to inspire children through his books to become independent and self-thinking adults. His colourful tales of interstellar adventures motivate young readers to develop their curiosity and creativity. Martin hopes that his stories will encourage children to explore the boundaries of their own worlds, becoming fearless and independent in the process.
"By teaching children to be confident, we enable them to become the architects of their own future."

Manuela Wieninger, better known as the 'Story Magician', is a cheerful actress who enchants children and adults alike with her talent for slipping into any role. Her love of storytelling led her from the theatre straight into the world of children's literature. When she's not on stage, she's writing a new book. At home, surrounded by stacks of old fairy tale books, she is always on the lookout for the next great adventure - be it on Earth or in distant galaxies.
"Courage is the magic that makes dreams come true."