William saw fine symbols scattered all over its surface, and that made him realise this was a heavily fortified safe. "I don't recognise these symbols, but I can tell they are following a pattern that I'm familiar with…"
William cancelled his transformation, stood in his place motionless for a few minutes. He thought deeply about the pattern the symbols took, and eventually he recognised it.
"It's the Surging Ocean Wave Tidal formation… Such a high sealing formation found in this world, in such a place… I'm sure there is something precious stored inside…"
William knew this sealing formation and knew how to unseal it. "Ocean comes, the land trembles, and blood flows…" he muttered these words before he took a sword out, cut his hand, and squeezed the blood out, "death follows, and life flourishes in the end… Ocean comes…"