Alexander made sure to make his statements clear enough so that the ladies would exactly understand what he wanted, yet at the time, vague enough so that they could pretend another interpretation.
Given that the ladies were apprehensive about touching the divine lineage, Alexander would not twist their arms. Nor did he offer any compensation for he thought this would only cheapen the effect.
What he was asking them to do was basically priceless- for them this was a matter of principle.
Thus the question of whether Amenherafted would be poisoned or not, the Lord of Zanzan had no idea.
In fact, even the three sisters themselves did not know their answer as a raging tsunami streaked across their hearts, threatening to almost tear their chest apart.