Li Moting used his company clearance to requisition an engineering vehicle. Ground-penetrating radar detected metal beneath Column No.7. When the drill bit shattered the concrete, a putrid smell rushed out—
Not from a corpse, but a sealed titanium alloy case.
The contents were chilling:
1. Blue vials labeled **"MN-07 Final Version"**
2. Xia Mingyuan's work ID (valid through 2023)
3. A child's drawing: two adults holding a child's hands with Cambodia's Angkor Wat in the background
Xia Xiaoman sprayed hydrochloric acid on the drawing's reverse side. Invisible writing emerged:
**"Qiaoqiao, I had to fake my death—otherwise they'd never stop hunting you. Remember, Li Moting is also a victim. —Love, X.M."**
Li Moting suddenly snatched the drawing and held it up to the moonlight: "This ink..."
"It's MN-07's developer." Xia Xiaoman's voice shook. **"The full message only appears when mixed with our blood."**