I Crouched Against The Black Tree

Ten years ago, Earth was occupied by the Calumnians, and if it weren't for the alien Osio who saved what was left of humanity, Indy's race would have long since died out. Now, sixteen-year-old Indy and the other surviving children are about to complete their training and return to Earth to kill the monster that destroyed their world and killed their parents.

However, the children on Osio's spaceship are eliminated one by one in the training tests, and only a few remain. Can Indy prove that he has enough skills to become a soldier? Or will he fail humanity like his parents did?