After David Valliadis was done slaying the Silent Death Organization's head manager, he began to return towards his palace.
'Fortunately, Father wasn't fooled by this man's talks. Most of what he spoke about that Nightmare Order was utter rubbish.'
David Valliadis had already come into contact with this organization. He already had his men keeping an eye on the core members of this organization.
However, they hadn't moved during the assassination attempt on the Noble Family Heads.
It was actually the Silent Death Organization who moved at that moment. The King wasn't convinced and wanted to get an explanation from the managers of the Silent Death Organization at those particular cities.
But after that conversation, the King realized that they just wanted to fool him even further. Thus, he sent the order to slaughter them.