C395 Experiment

This time, the old man asked Soong Fann to meet him at the edge of the cliff.

Soong Fann was puzzled. He had already moved all the stones onto the cliff, so why did he need to go to the edge of the cliff?

When he reached the bottom of the cliff, the old man was standing on the cliff, his hands constantly caressing the stones that Soong Fann carried up.

"Very good, you did very well