The clue was easy to investigate. With one command from the Second Master, the Marvin Family was sealed by the Horizon Bureau. Each member of the Marvin Family was interrogated one by one.
The notorious reputation of the Horizon Bureau left even county magistrates frightened, let alone the newly rich Marvin Family. It only took half a Shichen (one hour), and someone among Mr. Malvin's four attendants provided a clue:
Three days before Sophia's mother's death, Mr. Malvin departed from the village and did not return home. Instead, he headed directly to Prefecture City and visited a Taoist Temple.
Mr. Malvin entered alone and his attendants were blocked outside. However, the attendants remembered that this Taoist Temple gave off an eerie atmosphere.
The Second Master ordered his trusted Lord to investigate secretly, but warned not to startle the snake with the movement of the grass (startle the suspects).