The paper was rolled up by Lu Li and stuffed into the mailbox. The crow, having finished its meal, fluttered out of the window as Lu Li opened it and merged into the dense night.
Anna thought it was over, but she then saw Lu Li scoop something from the desk, his hand seemingly clutching something, and he threw it out the window—
She gazed at Lu Li curiously.
"The other crow you can't see," Lu Li explained.
After a moment of confusion, Anna suddenly remembered something that others couldn't see.
Anna invoked the object whose name couldn't be spoken by humans, "That door?"
"Yes."
"Um... how should we deal with it?" Anna had just remembered that Lu Li was still entangled in a big trouble.
"Wait for a reply from the investigators' headquarters."
If the "door" remained unchanged, Lu Li could hold on for a long time.
[When you hear them, they can see you. When you see them, they can touch you. Do not touch them—]
