Originally, Jiang Liu summoned the Good Corpse with the intention of using the Double Fish Jade Pendant to exchange skills and give him the Soul-Returning Spell to revive Long Eyebrow.
However, the skill exchanged with the Double Fish Jade Pendant can only last for five minutes.
To have the Good Corpse fly from the Heavenly Court to the Long Eyebrow Temple, though the Good Corpse is incredibly fast now, five minutes is simply not enough.
Therefore, Jiang Liu took the Skill Bookcase from his Special Equipment slot and placed it in his inventory space, and then put a Soul-Returning Spell skill book inside the bookcase.
Over the years, through fighting monsters and leveling up, not only has he obtained a lot of equipment, but he has also received quite a few skill books, including four or five copies of the Soul-Returning Spell skill book.
It's just that he's already learned this skill, so the skill book doesn't have much use for him.
