Angus and Babhoor return to the Academy for their third year with the threat of Angus' unknown nemesis still hanging over him. First, he and Bahoor face the dangers of the Moon walk when his nemesis takes the opportunity and tries to kill them; then Helen and Patricia face the same danger. While at the Academy, rogue robots are still an ever-constant threat to Angus. And what will happen to Helen when her father dies, leaving her an orphan with no extended family, while still at the mercy of the beemen?