She closed in on Professor Brown, the oppressive aura radiating from her causing the old man to instinctively take half a step back. "I'll say it again. Seven days. Use your most dangerous method to open it."
Professor Brown's face flushed red. He opened his mouth to argue, but the ruthless look in Guan Yao's eyes deflated him completely.
He snatched a safety helmet off the workbench and slammed it hard onto the floor. "Fine! But if any accident happens, you take full responsibility!"
Chapter 248