The Offer.

The calamity of forceful regurgitation continued for hours before it subsided. It was only then that the dukes felt it safe to return. Even then, they were very cautious as they returned. They were slow, alert, and watchful of any other attacks. It will not be strange if this is a battle move of the demon lord. She is a lying, scheming demoness. It is not beyond her to pull a stunt on them. Their caution was for naught. 

They found a red shadow standing in front of a thin demoness. The red shadow seemed to blend into the environment. It held a red scythe and was watching the demon groaning at its feet. If not for the light reflected on the black blade of the scythe, then the black shadow would have been impossible to notice.