Standing before the towering, thirty-foot-tall and ten-foot-thick [Nine-Lock Mithril Vault Door], former Shadow-Venom Guild Master Poison-Fang swallowed hard and whispered:
“Young Masters, Young Misses... this is the hardest obstacle in the entire Golden Heir Palace. This vault door was cast from ten million tons of Rank-9 Star-Core Mithril and sealed with the Nine-Dragon Interlocking Blood-Lock. Unless all nine locks are turned simultaneously using nine drops of Golden Heir Gu Wuji’s voluntary heart-blood.
Even a Rank 9 Early Galactic Sovereign pounding on it from the outside would take three days to break through. And the vibrations would wake Patriarch Gu Tianba inside the Forbidden Blood-Star Tomb!”
“Three days of pounding?”
Sixteen-year-old Ye Xiao pushed his round spectacles up the bridge of his nose and shook his head with a calm, scholarly smile as he flipped [Dad’s Plot-Spoiler Notebook] to Page 77.
“Uncle Poison-Fang, only an uneducated brute uses brute force against a lock before checking its chemical composition,” Ye Xiao said, tapping the glowing golden diagram on the notebook page with his [Homework-First Bamboo Ruler Sword]. “Look at the metallurgical footnote Dad’s notebook just generated for the Nine-Dragon Interlocking Blood-Lock:”
[NOTEBOOK METALLURGICAL FOOTNOTE — NINE-LOCK MITHRIL VAULT DOOR]
* Material: Star-Core Cold Mithril bonded with 10,000-Year Coagulated Ice-Bat Blood-Grease.
