Lucky chance
"Wait, you're saying the King prevented you from killing Kraven?" asked Lex, realizing he had finally touched upon the real secrets of this realm.
"Yeah," replied Aegis, not at all phased by the severity of what he was revealing. "I was very young back then, like maybe 11 years old, so old pops never really knew who I was yet. But when I started killing too many Kraven, he had to come and stop me. He said I was too young, and wanted to hide my potential."
Lex calmed down a bit upon hearing that. If it was to protect and hide a very promising child, then preventing him from killing Kraven made sense. It was still not incriminating enough.