Under the gaze of the fiery figure, the moment Charles's outstretched finger touched the boundary of the black pillar, it felt as if it encountered a hard, invisible wall, and he could not penetrate it at all.
"How strange, the [black gold long knife] can pass through, but my finger cannot?" Charles thought for a moment and then summoned the mystical beast Little Gold without hesitation.
"Little Gold, use [Liquid Metal Spray] to completely cover my index finger." Charles communicated directly with Little Gold in his mind.
Little Gold glanced at Charles with curiosity but didn't ask further questions. Instead, it carefully and slowly exhaled some golden liquid, pouring it over the index finger that Charles had extended.
In an instant, a sharp pain surged through him.
Yet Charles's expression remained calm, as if he didn't feel any pain at all.