The more Lu Yu thought about it, the more puzzled he felt. At this moment, he gently shook the package in his hand, discovering it was not very heavy. While shaking it, there was a sound coming from inside, clearly the noise made by the object inside the package.
Upon hearing this sound, Lu Yu narrowed his eyes slightly and then directly tore open the package. A square paper box instantly appeared before him.
The box wasn't large, square-shaped, with no markings on the top, making it impossible to determine its purpose.
"Playing mystery games!"
Seeing the box, a sharp gleam flashed in Lu Yu's eyes as he coldly remarked. Meanwhile, he reached out to open the box.
As the box was opened, Lu Yu lowered his gaze, discovering a very small antique-style bar phone lying quietly inside the box.
Beside the phone was a note, neatly written with small characters: Please keep the phone turned on 24 hours!
Keep it turned on for 24 hours?