“I'm very sorry, Jeanne. This evening, the guest of honor is not my lady.”

His face twisted with a sinister laughter which could make one shiver. Although he would reveal a madness which did not exist before, Caster responded.

“―In spite of that, to be honored by my lady's presence again is a supreme joy to me. Please enjoy to the fullest, the banquet of death and degeneration this unworthy Gilles de Rais prepared.”

Under the feet of Caster's who was laughing out loud, the dark surface started shaking. The countless creatures which had gathered under the summoner's feet, protruded their innumerable tentacles simultaneously―weren't they swallowing down Caster who was standing on their heads, receiving them?

At the first look, Caster appeared to have been assaulted by the familiars which had betrayed him. However, with his entire body covered by the tentacles, Caster proudly raised the voice of his mad, ringing laughter further up a tone, which was already similar to a strange shriek.

“Now, once again we'll wave the salvation flag! It's good that the abandoned had gathered. Great that the condemned had gathered as well. I am the leader! I am the commander! The resentments towards us, the oppressed ones, surely would have reached even “God”! Oooh the Lord of heavens! I receive the condemnation and offer up my body!!”

The bubbling surface swelled up, and pushed up Caster who was still being swallowed by the tentacles. Before one knows, the number of the creatures becoming his foothold increased. If one considers the depth of the river, that number was already more terrifying than imagined.

“Caster is......being absorbed??”

In front of the eyes of the horrified Saber, the amount of creatures crowding at the summoner's body itself kept swelling. The summons of Prelati’s Spellbook had to be of an inexhaustible supply. The countless tentacles entwined among each other and fused together, and was already becoming a lump of meat.

The glittering, filthy mucus which could make one nauseous, was pretty much a sandbar of meat; an island of meat. Yet, as if that was still not enough, the assembly of creatures swelled continuously.

Even Caster's figure had disappeared. Only his voice reverberated like the cry of victory.

“O you proud “God”! O you cruel “God”! We'll drag you down from your heavenly seat! O Lamb loved by God! O humans who take after the image of God! At this very moment, scorn, insult, rip apart to your heart's content! We will ride on the guffaws of the rebels, to the lamentations and shrieks of God's children, and strike the gates of heaven!”

The dirty lump of meat had already swelled to the size of a sphere. No, maybe this is the real form of the diabolic underworld. All the familiars Caster had employed until today had to be but the bits and pieces of this; small fries which would not exceed this.

“That is......”

A grotesque shadow rising with darkness as its background. At that disgusting and yet overwhelming majesty, Saber held her breath.

Even the champions of the deep seas- whales and giant squids, could not boast of such large size. A nightmare which governs the ocean in the realm that is outside this world. Without a doubt, that aquatic giant fits the name of a “sea demon”.

It was fortunate that no one was standing with Irisviel at the river bank, but at the other shore of the river, residences had already turned their lights on. In spite the fact that it was late at night, the mad sounds would be transported by the wind there. Naturally, such an obvious mystery would be exposed to the eyes of the public. At the very least, due to the thick night fog which shrouded visions, those able to witness the monster would be limited. The residents' panic would be confined into a restricted area.

In any case, the unspoken agreement that the Holy Grail war should be conducted in secret, was completely violated.

“I have underestimated this fellow......Summoning such a monster!”

“No, no matter how strong a Servant is, the “form” of the familiar they can summon and use should be limited. However, if we were to ignore “using”, there should be no limit to it...”

The supposedly stout-hearted Irisviel revealed her awe through her voice this time.

“Neglecting the controls after the summoning, if it is just “inviting”......no matter how powerful the monsters are, logically, it is still possible. As long as he has the prana and technique to just open the door.”

“......That monster is not under Caster's control?”

“No doubt about it.”

Irisviel's state of being shaken was probably because of the terror she was able to comprehend as a magus. Nevertheless, Saber did not have any pains at grasping the gravity of the situation.

“Magecraft is “the art of flipping through evil”. But THAT is a genuine “evil” which does not apply to the reasoning of those minions. The incarnation of something which have the craving desire of endlessly devouring with thorough greediness. To summon such a thing; that act itself is neither an “art” nor anything else!”

Whilst tightening her fists in anger, Saber considered the magus' madness.

“Well then, that creature is not challenging anyone to a fight.....?”

“That's right. It was just invited to eat. A city like this takes only a few hours to be completely consumed.”

- Fate/Zero: Act 10, Part 1