The Mysterious Stony Man

"This problem is related to many principles. Firstly, do you understand Herb's Law?"

"No," Kirsten looked lost.

"Then let us begin with Herb's Law …" Ye Chong did not look impatient. He was a picture of patience and serenity.

For the past few days, Kristen became absolutely convinced of Ye Chong's abilities. She felt grateful for taking that bold step in asking this young man to be her teacher.

Kirsten had asked about everything she did not understand in the past few days. In fact, they were now still discussing only her first question. She did not imagine that there was no much knowledge involved in just a simple question.

It was on the fourth day that she finally figured out her first question. However, in these four days, Kirsten felt that she was getting more than she hoped for.