"Keep it and study it. It could be treated as a contaminant later," Gu Shanhai pondered for a moment before sealing the suspected remnant of some being, and then tucked it into his portable lab for isolation.
This thing was too weird. Even if it wasn't dangerous, Gu Shanhai wasn't quite comfortable with putting it into the Mother-child Grass.
As for what exactly this suspected book from the Great Ruins was, Gu Shanhai had no clue. A thief might know the location of the oil tank, but how could he possibly know the entire structure of the car and the owner's information? At most, he knew that the owner was absent, which is why he dared to make his move.
Gu Shanhai's attempt to meddle with the Great Ruins was somewhat similar, except perhaps the fuel from the Great Ruins was thrown out in a fit of pique, not stolen by him.
He had no capability to extract the fuel from the Great Ruins.