As Magnus had said, the last course at the Red Feast was always meat, familiar and customary, but not beef or pork, but monster meat.
There was only one question: which monster meat was the last course?
This time, it was Thunder Demon. It was a Top-2 monster of the Purple Threat Level, it was extremely rare for a Top-5 monster to appear at Red Feast, regardless of Threat Level.
However, what surprised Adam was not that it was Thunder Demon. It shouldn't have been forgotten that Thunder Demon was a subspecies of monsters and it was Essence Thunder Demon that was Top-2.
Thus, the Thunder Demon that was the main course of this Red Feast was not necessarily the Thunder Demon that Adam had defeated.
However... One detail was enough for Adam to realize it immediately.