"Long time no see, you're as cunning as ever. Tell me, what trouble are you in this time? Need to borrow my strength again?" The Ghoul King would not easily be led by the Corpse King.
No matter how urgently he needed the other's information to understand what was really happening inside the Plains of Bone, so he could make his next decisions.
Actively asking for intelligence and exchanging help for information are two entirely different concepts.
The Corpse King is also an expert, keeping quiet about being besieged by the Burning Flames Queen's army and his territory being overtaken soon, instead directly targeting the root of the upheaval in the Plains of Bone: "A divine power presence has appeared in the Plains of Bone."
This statement carried such weight that the Ghoul King involuntarily sat up straight, asking, "Divine power presence? What kind of divine power does it control? Which divine power presence is it?"
