So, Tian Lin didn't suspect Zhou Shichou.
"I don't think Senior Brother Zhou is that sort of person."
"I understand now—the one surnamed Jiang must be afraid of retaliation from the Blood Sect Devotee, or perhaps fears being detained by the Heart Inquiry Sect, that's why he fled alone. He's always been the type to fear death and seek life, and it's not surprising that he'd run away at the sign of danger."
Tian Lin thought this too on the first night of surveilling the inn, and sure enough, Junior Brother Jiang returned early the next day.
He suspected that Junior Brother Jiang might be colluding with the Blood Sect Devotee to ambush them, but after several days of surveillance, there were no suspicious individuals around the inn.
"Why not wait until tomorrow morning to see if Junior Brother Jiang returns to the inn. If he comes back and doesn't bring it up on his own, we won't ask either. Just watch what he does next."