Where is Cao Yuandong, who is too illusory in Zhu Xian?

I took the task at the Yin (414,416) of the Mausoleum of the Wild Emperor.

Go to the dreamland to find the whereabouts of Cao Yuandong (-333, -360).

Cao Yuandong (-333, -360) helped Yin divination.

Get a toolkit and right-click to open it.

Get a title of "first glimpse of the secret" and an empty hint and a divination. Right-click the empty prompt.

Bring a toolbox to Yin.

Go to Cao Yuandong again (-333, -360).

= = It's over