The Thunder Emperor as not surprised by this.
He was also not at all surprised when the Waking Moon suddenly reappeared behind the emissary and plunged the dagger she had gotten from her dead brother right into the emissary's back.
The dagger cut through flesh and bone until it reached the emissary's heart ripping it to pieces.
The emissary spat out a mouthful of blood and almost fell out of the sky.
From the very start, the Waking Monarch had never been stupid enough to think that she as powerful enough to take on the emissary in a direct battle. Since this as the case, she came up with a simple plan. She killed her brother as fast as she could and grabbed his dagger while making sure to hide this fact from the emissary.
She then created a clone of herself before merging with the world and erasing her aura.