"The first fire started from the inside." Lian pulled Xiao Lin's attention back to the North Palace, still suspecting he was hiding something from her. Comparing the photos, Lian walked to a warehouse-like area. "After crossing that bridge, it's about three or four meters. According to the blueprint, this should be an open space, possibly meant as a green belt opposite Xuefu Road. If the fire started inside the North Palace, then based on the wind and airflow, this open space beneath us should've been affected first. But the burn area isn't large; only about two meters are stripped of plants, as if the fire just jumped up. If it were a gas explosion, the impact would be different, meaning there was no flammable gas here at that time. Yao Zheng is lying."
The North Palace was burned, not exploded. This is the first issue Lian wanted to address. Explosions have impact and destructiveness, but now, the building doesn't show signs of destruction.
