[You've resurrected in the Watchman's Cabin.]
Luckily, the Green-clothed Administrator was carrying an elderly Shadow Ghost, its power far inferior to that of Granny Tang whom I've encountered earlier. I killed it with a single Cannon shot.
Regaining his senses, Mu You first assessed the spoils dropped from the vanquished enemy.
Besides the clue found in the Octave Box, something from the Shadow Ghost had also fallen.