A Bow Meow on the Moon. Joris is intrigued: why is his Grandpa suddenly passionate about astronomy? What is he trying so hard to observe in the sky with his telescope? It's very simple, Kerubim wants to take advantage of the passage of comet Halaize to wave to his long-time friend, the intrepid Diane Ardant who has taken up residence there! Oh Diana! This story goes back to the time when Kerubim and Diana set out to conquer the Moon...