Gu Lingdao felt a shiver running down his spine seeing the eerie aura and thick killing intent surrounding Lin Xulian. If she is another person, he would immediately decline her request since she clearly embodies the people he hates the most. Wanting the knowledge about the Gu poisons to inflict harm and revenge.
But he also cannot brush off the possibility that the young lady in front of him is really that supposed deceased empress and their King's blood relative. If she is, then letting her learn the skill is not a problem. Their entire clan owes their family a debt of lifetime after all. In any case, he just needs to bring her to the castle and let the King identify her. Then also let him decide for him.
