Elara was baffled to hear his ridiculous, reckless plan. Yet it was better than anything they could come up with, so she had to agree to it. Kaelis was the same, as he could only trust in them.
On the other hand, Aegon truly believed that Hecte could do this. She was at Rank 8, a realm far surpassing mortals. Every Rank after the sixth one was a realm of its own. She was among the most powerful people in the whole world; only the Emperor and the Demon King surpassed her greatly.
That also meant her Soul encompassed a vastness in the Main Consciousness unlike anyone else's. And that vastness determined one's control over the Conceptual Plane, where all Laws and Concepts resided, independent of the reality that the plane transcended.
