Of course, the true Amon god didn't actually exist; he was merely the personification of the world's failed creation, nothing more—at least, until today.
As for after... Ra looked at the power that legally belonged to "Amon," which the world had proactively bestowed upon himself, and he finally made up his mind.
Even the gods of Hemenu can die, and even grow old and pass away, including himself. As the supreme deity, Ra had been contemplating ways to solve this problem for a long time.
Luckily, after a lengthy exploration, he did indeed find a way to change this outcome because Hemenu's [Sun] held powers not possessed by Chaos; it inherently possessed the capabilities of [rebirth] and [renewal].
He planned to be reborn in some way just as he was about to age, then, just like he had devoured Atum, allow the new self to consume the old self in order to avoid decay and death.
He had even made arrangements long ago. Thebes, a place far from Heliopolis and outside the traditional system of Upper and Lower Egypt, was the place he had prepared for his reborn self. The new self would be the guardian deity birthed within this city-state and would silently replace the Sun of old.
The gods were likely still unresponsive, and a transformation of divinity had already been completed.
However, that was before. Now, Ra felt he had a better option.
If he could obtain the power of the Foreign Realm's God of Sun, he would prefer to use another Sun's power as the foundation to evolve his new self, ultimately harnessing the devouring ability among Hemenu's deities to commence a preliminary integration of the 'Sun' concepts from both worlds. Although this couldn't be done right now, the existence of the [Absolute Void] wouldn't be too far off.
The reborn Amon would evolve with that power as the foundation and inherit one of the names of The Eight Primordial Spirits. As the highest of Hemenu, Ra wouldn't ordinarily conceive of the idea of devouring other deities, for the divine authority of those far inferior to the [Sun] would not enhance his power but rather drag him down.
However, this stood irrelevant in the face of the world itself; even a trivial portion of The Eight Primordial Spirits' power would only serve to strengthen rather than weaken him.
"So I said, the next time we meet, it will be a matter of life and death, Outer God."
"Except... it will be you who dies, and I who lives."
Clenching his fingers tightly, Ra didn't rush to begin his rebirth.
The 'death' of the Sun required a grand ritual... and he also wanted to see, when he 'died,' what choices the deities dwelling in Heliopolis would make?
Since he was about to confront an external enemy, no matter how he considered it, he would need some cannon fodder.
Souls floated, traveling through layers upon layers of portals.
Roaming through the Primordial Water, Pallas's soul was gradually restored.
Moving beyond the outer shell of the world, it began to drift toward the banks of the Nile River. There lived beings closely related by blood, and though he had not yet 'come to life,' he instinctively began drawing closer to that side.
"Tsk, to think I would actually wait until now."
A fair and slender arm reached out from one side, gently grabbing the soul's arm. Under the lush folds of the skirt, the girl who seemed cherished by all creatures smiled, observing the spiritual body that hadn't entirely shed its foreign air yet.
Like the previous Io, another Outsider had arrived... only this one seemed to have been actively sent in by a Foreign Realm's existence.
"Undergo ten rebirths among a race with blood of the Foreign Realm flowing in their veins to erode the abnormal aura, then integrate fully into this world? This plan began with Io all those years ago, such a prolonged scheme."
With a smile curving her eyes, Isis laughed lightly.
Ever since the Sun left not long ago, she had secretly departed from her magically constructed shelter to the place most inhabited by Hebrews.
All of the gods were focused on the departure of the Sun, the all-seeing Ra was no longer present, and no one possessed the capacity to discover her.
And so, quite silently, Isis happened upon an Outsider from a foreign land for the second time, and on both occasions... she was the only one to find them.