Chapter 734 Saving Wen Yuchen!

Chu Xun stayed on Dragon's Back for more than a day because he needed to know more about the ancient war. He told Emperor Ao the story about Wen Yuchen. "Wen Yuchen will be a good helper, but he is now trapped in the Subterranean Devils Clan. I have gone to the Immortals but have not found the key." However, Emperor Ao suddenly laughed. "What are you laughing at?" Chu Xun was confused. Emperor Ao smiled and was silent. With a flip of his hand, a black key, a palm long and flickering with dark light, floated in his palm. Chu Xun widened his eyes, and his heart skipped a beat. "That's right. This should be the key to the four Cold Steel Chains that have trapped Wen Yuchen," Emperor Ao said. Chu Xun, who had always been calm, was shocked this time. "Why is the key in your hand?" "Back then, when the Immortals retreated, someone wanted to secretly destroy this key. But I happened to see it. I thought it was a key to the treasury left by the Immortals ret