"What's going on? Why are all of you gathered here?"
After returning to Sky City, Allen immediately discovered that all the Guardians, including Artoria, had gathered in his room.
More precisely, they were all staring nervously at the container on the table that sealed the "Darkhold."
"Lord Allen! Not long ago, that container suddenly released a thick black fog that enveloped the entire room. According to magical detection, it seemed to have pulled the whole room into some kind of alternate space." Chief Guardian Edna Bevin hurriedly explained.
"What? You mean... Sithorn's power broke the seal I set?"
Allen was clearly taken aback.
Although he knew that this Chthon's power was far stronger than that of most other Dimensional Demon Gods.
The Dark Magic he wielded was also renowned for being bizarre and ever-changing.
But leaking his power without damaging the seal was theoretically impossible.
Because the seal Allen had set was an energy seal.
No matter what method Sithorn used, as long as he used energy, it would inevitably be intercepted completely.
And regardless of the kind of magic, energy was its most fundamental and indispensable component.
Yet judging from Edna Bevin's description, Sithorn seemed to have used some ability Allen did not understand.
"No! Your seal is intact. There are no signs that it was struck or loosened. I feel that the abnormality just now was more like some kind of resonance." Artoria voiced her own impression as well.
After all, possessing the power of Holy Light made her especially sensitive to energy from Dark Magic.
"Resonance?" Allen rubbed his chin and fell into thought.
Putting himself in Sithorn's position, if he discovered that the "Darkhold" he had left on Earth had been inexplicably sealed away, and the method was so sophisticated that he could not sense what