Astro masters new challenges!
In the fourth book of the series 'Astrolabius Lives on the Moon', Astro has to face a number of difficulties. First, he tries to find a way out of the labyrinth of mystical catacombs. Then, all of a sudden, the Lunar Station has to be saved from a blue menace and Astro's big brother skills are urgently needed. Last but not least, Astro experiences a really unlucky day, in which Erik is once again involved. It's a good thing that Astro doesn't lose his sense of humour. And of course, he gets a lot of support from his best friend Nolan!