```
Uh...a tree root.
Dong Xiaoyan was at the window when she suddenly saw a shadow move. On closer look... it turned out to be a small tree root tapping on the window three times.
Dong Xiaoyan rushed over in an instant, but the tree root had vanished with a whoosh.
On the windowsill was left nothing but a letter, with a little bit of soil attached.
"A letter?"
Without hesitation, Dong Xiaoyan snatched it up.
"Be careful, it might be poisoned!" Dong Pingjiang shouted.
But Dong Xiaoyan had already opened the letter, and nothing was amiss.
The others gathered around, intrigued by this unusual incident.
"What's going on?"
"Wait, let me finish reading the letter first," she said.
Dong Xiaoyan's face brightened as she opened the letter. The handwriting unmistakably belonged to Feng Yin, complete with the secret codes that only the two of them knew. There was no way it was faked.
