When Lucifer returned to Oblivion Bookstore, he wore a furious expression and held a black diamond in his hand. This time, he sat by the window of his own accord, slapped the Black Diamond onto the tabletop, and said, "That idiot has truly gone mad!"
Schiller gathered up the last few books scattered across the floor, turned to glance at the black diamond, and said, "Bruce seemed to have brought back an identical diamond before. What is it?"
Lucifer's expression darkened. After a moment of silence, he finally spat out a name: "The Spirit of Wrath, also known as the Eclipse."
"Oh?" Schiller made a sound of interest. He put the book back on the shelf, sat across from Lucifer, and waited for an explanation.
"You know that, in ancient times, God needed certain means of intimidation to spread His renown, and so the position of God's Executioner came into being. The incarnation of God's Spirit of Wrath was the first Executioner, but he was later replaced by the Spirit of Vengeance."
"I didn't pay much attention to what happened afterward. I only heard that the Spirit of Wrath had apparently been sealed by the Spirit of Vengeance, and there had been no sign of him for all these years."
"But I never expected Gabriel to be so insane. He shattered the Spirit of Wrath's seal and used it to wound Maze."
Lucifer clenched his fist, pressed his lips together, and said with some self-reproach, "Gabriel has always wanted to find my weakness in the human world. The people he sent to the bar before were a test. I was careless."
Then he sighed and said, "The Spirit of Wrath's power is very unusual. Wounds inflicted by his sealing artifact carry that special power, causing immense pain as they heal.