Flucht vom Mond (Escape from the Moon) : A cyber-detective story from the Level 4 Series / Andreas Schlüter. - 3rd printing – Munich : Deutscher Taschenbuch Verlag, 2007. - 286 p. ISBN 978-3-423-70817-3
During a class trip Ben and his friends accidently end up in a jail for young offenders on the moon. They quickly start working out an escape plan. Recommended for ages 11 and over.