Silva and Illumi had just left the area around Kukuroo Mountain when Zeno began clearing out any potential threats that might appear around it.
The tourism industry in the surrounding area was forcibly shut down. No one was allowed within five kilometers of Kukuroo Mountain. Any outsiders discovered there would be killed without exception.
Among the Zoldyck Family's secrets, only the eldest son, Illumi, and the second son, Milluki, knew about them. The three youngest children were still unaware. Killua and Kalluto were too young and needed to travel outside, where they might let something slip. As for Alluka, the truth had been deliberately concealed from her.
A large number of small drones were released by the second son, Milluki, to monitor activity around Kukuroo Mountain. The Zoldyck Family's butlers also all mobilized, forming squads of three and taking turns patrolling the surrounding forests.
At that moment, the Zoldyck Family was like a hornet's nest. Anyone who dared approach it would definitely pay a terrible price.
After twenty-four hours of sweeping the area, there were no humans left in the surrounding forests—not even large wild animals. The only ferocious beasts remaining were the giant hounds Silva had raised.
Silva and his son Illumi were true assassins. They took only twenty-eight hours to drag Killua back from the border of East Gorteau.
At the foot of Kukuroo Mountain, four people had passed through the Testing Gate and were heading straight for the Zoldyck Family's castle.
"Father, what exactly is going on? Is it worth breaking your promise?"
"..."
Killua Zoldyck received no answer from his father and could only silently follow behind him.
Although Killua Zoldyck was only twelve years old, he was by no means an innocent child. He was about the height of an ordinary child, with white hair