The process of the group's investigation task was, to say the least, quite complex, but in reality, it wasn't that convoluted. To describe it in the simplest and most straightforward terms...
Ye Weiming, along with the Feiyu who had earlier agreed to help, the small bridge who wanted to follow along for a chance to appear on television, and Tang Sancolorful who joined purely for the thrill of it, returned to Tianyincheng from Leshan, and then took a carriage back to Bianjing from Tianyincheng.
Upon arriving in Bianjing, Ye Weiming took the three directly to the Duke of Deer's Mansion. Their aim was naturally to ask Wei Xiaobao to lead them into the Imperial Palace for a second inspection of the scene. Along the way, they just so happened to run into Sanyue, who was completing tasks in the city, and thus she also joined in for the fun.