An Ingenious Setup

Time was a blade hanging overhead, cutting apart the Ji Li in the photograph...

But the Female Voice had clearly stated that all ghost attacks would pause while he made his choices.

Why?

Ji Li did not understand, but he had no time to stall.

A could not coexist with B or C.

He had deduced this from the first half of each option.

Judging by the frozen image on the screen, Ji Li was facing the moonlight with his back to the shadows.

And in this very position, a pair of invisible scissors was cutting him apart.

That meant he had to reverse his position to avoid the attack.

Turn his back to the moonlight and face the shadows.

So Option A had to be discarded.

With that line of reasoning established, the problem became much less difficult.

He had to choose between B and C, and to satisfy the multiple-choice rule, he also had to include Option D.

At that thought, Ji Li lit another cigarette and began carefully considering the last two options.

On the surface, Item B seemed perfectly sound.

Ji Li knew nothing about music, but the most basic fact was that he needed a score to play.

The code shared by Teacher Liu and Ruru was clearly "Twinkle Twinkle Little Star."

But even with such a simple melody, Ji Li, who knew nothing about playing the flute, could only learn by following the score.

So taking out the Bamboo Flute and the Sheet Music was the most appropriate choice.

But this baffling Option C...

"With your back to the moonlight, take out the Bamboo Flute and the bone."

Ji Li remembered all five items he had obtained from Ruru's House.

The Head Alarm Clock, a decayed tooth, a suspected human bone, half a Bamboo