It was already noon when Gu Zheng and Han Xiao drove back to Capital City.
They headed straight for the printing plant at Third Normal College without a moment's delay.
Gu Zheng stood at the gate and surveyed the surroundings.
Right across the street was the Guesthouse where Xu Changyi had stayed.
After returning to Shizhuang City from here, Xu Changyi had been attacked.
When the first attempt failed, he had faced a second assassination attempt in the hospital.
Even at the cost of losing their Shizhuang hideout, with more than thirty people shot dead and over twenty arrested, they had still been determined to kill Xu Changyi.
Just what secret of theirs had Xu Changyi discovered?
What exactly did the six digits he had left behind mean?
Gu Zheng looked again at the address plate on the gatepost: 64 Wenhua Street.
"Lead the way!" he told Han Xiao. "Go straight from the main gate to that little gate into the college!"
Han Xiao nodded.
When they entered the plant, the old gatekeeper was fiddling with his radio.
Clearly, he was used to outsiders coming into the plant.
Following Gu Zheng's instructions, Han Xiao headed straight toward the little gate without taking any detours.
Gu Zheng walked very slowly.
His eyes stayed fixed on the ground, searching for manhole covers.
Since Song Ning and Han Xiao had already searched the place several times,
there was no need for him to examine what they had already checked.
Song Ning had smashed the medicine bottle against a manhole cover and left the number "64."
She must have been telling him to come back and examine those manhole covers carefully.
But without taking a detour, the route from the main gate to the little side gate into the campus...
only required a left