A Thought on Euron in TWOW (Spoilers Extended)

Whether you think Euron is legit or not, its all but confirmed he is about to attempt a giant ritual blood sacrifice in the hope of summoning something or gaining some power.

Euron's Location During the Blood Sacrifice

In the same vein as Dany's hatching (and potentially Summerhall and Stannis "waking the stone dragon") all of these rituals seemingly involve that character (Dany/Euron/etc.) being amongst it all:

The dreams were even worse the second time. He saw the longships of the Ironborn adrift and burning on a boiling blood-red sea. -TWOW, The Forsaken

and like the funeral pyre:

“Your Grace,” said Torwold Browntooth. “I have the priests. What do you want done with them?”

“Bind them to the prows,” Euron commanded. “My brother on the Silence. -TWOW, The Forsaken

Euron is going to be aboard the Silence during all of this (unless he abandons ship at the last minute or Euron is using a glass candle or Aeron is still feeling the effects of the Shade of the Evening and doesn't actually know whats going on).

So if Euron is going to pull a Dany during this ritual, he is either going to come out of it:

Dead

Summoning beasts can be deadly for the unworthy. Just ask Quentyn Martell.

Astride some Beast

He could be summoning anything from kraken(s), to a dragon/sea dragon (Nagga), the "drowned god", Deep Ones (don't expect it), or even a Cthulhu type monster.

From a smoking tower, a great stone beast took wing, breathing shadow fire.

A Beast Himself

Euron seems like he is trying to become a "god":

These are the last days, when the world shall be broken and remade. A new god shall be born from the graves and charnel pits -TWOW, The Forsaken

and:

He saw his brother on the Iron Throne again, but Euron was no longer human. He seemed more squid than man, a monster fathered by a kraken of the deep, his face a mass of writhing tentacles. -TWOW, The Forsaken

The Silence is somehow spared

I find this least likely. I could see Euron being spared (like Dany on the pyre) alone, but not the ship/everyone aboard. (Euron's sacrifice/kingsblood/etc. are all aboard).

Hightower Interference

The Battle of Blood should occur between the Ironborn ships and the Redwyne Fleet. That said the next logical point is Oldtown/The Hightowers.

Since Lord Hightower has been doing who knows what gazing into a glass candle atop the tower for the last decade, its at least possible they are prepared.

What Happens Next?

Which POV will we read the next part of this plotline from? GRRM indicate that he wasn't implying there was only one Damphair chapter in TWOW:

Question: With the use of the word "the", are you implying that there will only be one Damphair chapter in WINDS?

GRRM: No. -SSM, The Damphair Chapter: 13 June 2016

So we could potentially get another Damphair chapter at least, and then I'm assuming it switches completely to Sam.

TLDR: Since Euron should be aboard the Silence, amidst a giant ritual blood sacrifice, it will be interesting to see what exactly happens to his body afterwards.