Just when Lucy was reaching the final stage of the fusion, dark and ominous clouds clustered above the sky-high mountain. Arthur was able to recognize them with one glance, they're the same clouds which appeared in Astria when he was fighting the Divine Beasts.
Thunderclaps resounded in the area, scaring the nearby beasts and causing a frown to appear on Arthur's face.
'The heavens are not happy?'
'What do you think? Of course they're not. However, this can barely be called a minor Celestial Tribulation. It should be a piece of cake to overcome it.'
While Lucy was busy finishing her business, Arthur stood a distance away from her and spread his two wings, one white and the other black. He raised his head, gazing at the thin red lightning that covered the sky like an intersecting spider net.