"He passed the test we agreed on," Krassazh answered his son.
After conversing with Amon, Ublaith met with Krassazh. The two agreed to give Amon a test. The test involved the Hyanids' two secret weapons, Ibizisx and Zetridh. The test was to expose these two, who were the core elements that enabled the Hyanids' invasion into the mainland. If Amon was truly on the side of the humans, he would no doubt try to eliminate the two young Hyanids. Without the two, the Hyanids' threat would be severely diminished.
That's why Arrasixx brought Amon here. They even created a hole in the ceiling to further entice Amon to act. If Amon saw a way out after assassinating the two young Hyanids, he would be more inclined to do it. Of course, Krassazh was hiding nearby to prevent that in case Amon truly tried to assassinate the two. Only after he ensured that Amon meant no harm to the two young Hyanids did he approach Amon from behind.
