Qiu Tu certainly knew what he was applying for.
"Mist Index Book," "Intangible Distortion Sensor," "Void Dimension Surveyor," "Retrospective Locator"....
Despite the grandiose names of these Cataclysmic treasures, in reality... they were all standard-issue Cataclysmic treasures from the Sanctuary.
And the function of these Cataclysmic treasures was simple: they were to investigate clues for cases or traces of Catastrophe Power through various methods.
For example, the "Mist Index Book" could generate an unusual fog within a certain area, and this fog would reveal all traces of Catastrophe Power residue in the vicinity.
The "Intangible Distortion Sensor" was for sensing distortions generated by the intersection of the Boundless Heart Sea and the real world, which were typically caused by Cataclysmic abilities, allowing this Catalysmic treasure to analyze the level and type of Cataclysmic ability.
