In William's heart, there were indeed a lot of doubts about Master Dark Flower!
If there were a thousand and a hundred perplexities, it would be impossible to interpret them perfectly based on normal logic.
Therefore, William had a crazy guess!
"Is this Master Dark Flower my grandfather?"
Even William himself didn't believe this crazy answer.
However, it just happened that he could miraculously answer all the questions!
If the Master Dark Flower was his grandfather, then the Green Snake Venom would naturally appear in the 'The Scripture of Tranquility Scripture'!
As for the Master Dark Flower, he would naturally have some interaction with the matriarch.
However, William was completely uncertain about this answer.
Because if this was the case, an infinite amount of doubt would arise.
For example, his grandfather had died under the siege of the Great Elders of The Lu Family in North Lake City, and many people had personally witnessed his burial!