Tang Yan heard his grandfather's voice and felt a bit embarrassed, "I was too absorbed just now and forgot you were here, Grandpa. I've understood some of it and should be able to practice."

Tang Ling frowned upon hearing this and quickly asked, "What rank is this technique? Can you identify it?"

Tang Yan kept estimating the power of this palm technique in his mind and finally shook his head after a long while, "It's hard to determine, but it should at least be Earth Rank."

"Earth Rank!" Tang Old Master was startled. There probably isn't an Earth Rank technique in the entire Yun City, yet this jade slip contains such a precious treasure.