The problem actually lay with the Eternal Fortress.
Edlin's Mage Tower was now fused with the Eternal Fortress. It could be said that the Eternal Fortress was now Edlin's Mage Tower.
The magic arrays possessed by Edlin's Mage Tower could likewise manifest upon the Eternal Fortress, making up for the Eternal Fortress's lacking attack power.
Its defensive power was enough to drive any Half-Step Ninth Order into despair.
The Eternal Fortress might not be able to withstand a Ninth Order attack, but its defensive power had reached an utterly outrageous level.
If the attack power of an Eighth-Order Peak was S-Class, then a Half-Step Ninth Order was S-Class with two plus signs after it.
Yet the Eternal Fortress's defensive power had reached S-Class with five plus signs after it.
Could you say its defensive power had reached the Ninth Order? No. It had merely surpassed the Eighth Order.
But trying to reach the limit of its defensive power was incredibly awkward. It required the combined attacks of a great number of Half-Step Ninth Orders—at the very least, all the Half-Step Ninth Orders present from the Chaos World and the Abyss.
Never mind whether they could truly join forces wholeheartedly; Edeline's counterattack alone would be a problem when they attacked.
To break through the Eternal Fortress's defenses, they had to attack with everything they had. And after going all out, they would inevitably have an instant of weakness—or rather, a moment when they had yet to recover their strength.
To Edlin, such a state was the best possible opportunity to attack. He might not be able to kill them all, but he could at least kill two or three.
Or, in the instant one of them was severely injured, he could seize them and drag them to his side, then seal