Ad van Kempen, our new pal from the Netherlands, sent in today's NLWS. Aruula appears in a German novel series called "MADDRAX". Perfect!
Many thanks, Ad!
As for MADDRAX, Wikipedia has this to say:
"MADDRAX is a series of biweekly Pulp novels published in Germany by the Bastei-Verlag. The series began on February 8, 2000.
The core of the stories follows the exploits of the United States Air Force pilot Matthew Drax, who has been transported some 500 years into the future.