Got Ya!
The following day, early in the morning, when the sun already comes up in the sky. Graven and Calder teleported back to the dilapidated castle to get a sample of the black liquid.
They hovered in the air outside the castle.
They can hear the sounds of birds chirping in the branches of the trees, as well the sound of streams gushing against the rocks.
"My Lord, what if we just blast this whole area? That would solve our problem with the cursed King," Calder suggested.
"I'm tempted to do just that but what if what he told us is true? That we will be poisoned by the black liquid and he is the only one who got the antidote? If the cursed King dies, we will perish along with him. Let's just wait next month, if nothing happens then the King was just bluffing, we can proceed to burn this whole place down without hesitation," Graven replied.
"Okay, you got a point, My Lord!" Calder said.