Even after returning to the magic tower, the legendary mage whose Meteor Spell had been blocked still wore a face of utter disbelief.
"Impossible! The fishmen can't possibly possess such technology!"
Yet the facts were laid bare before them.
The fishmen had already mastered methods capable of contending with legendary spells. And those methods were not merely for defense—they could be used to attack as well.
Judging from the scene of that cliff's destruction just now, their methods might have been crude, lacking refinement and precision, but their power was beyond doubt.
Those were legendary-tier methods as well.
Inside the Supreme Tower, beside the warning array, a circle of rippling light spread out. At its center was something like a mirror, reflecting the scene upon the sea.
Dark green rippled across the ocean's surface, thick and heavy, murky beyond measure.
Within the warning array, countless fishmen were shown dying in droves. As great numbers of fishmen died, an exceedingly powerful aura rose up.
"Sacrifice... When the weak wish to contend against the strong, this is the only method they have left!" An elderly legendary mage snorted coldly. "Those seafood creatures have no other skills, but they sure can breed. Even if they sacrifice eight or ten thousand at a time, it means nothing to them!"
The legendary mages looked at one another, their expressions all rather bitter.
Sacrificing eight or ten thousand at once? What sort of thing would that summon?!
Sacrifice was a very traditional spellcasting method, especially common in summoning magic. Offering sacrifices to powerful beings from other worlds and borrowing their strength had been as commonplace as eating and drinking for early spellcasters.
Back before Master Lanperus proposed the system of "modern magic," humanity's spellcasting system had been known as the "wizardry system." This system was famed