A ring of fire fell diagonally, and Ye Rong reached out to grab it in his hand.
It was a sword light transformed from a Dry Flame Wildfire Sword. He glanced at the letter attached to it and quickly replied to Feng Qingyun Dan.
This was already the second Flying Sword Letter he had sent, inviting Ye Rong to participate in the exploration of the former residence of an ancient immortal in Mount Tianmu, Jiangnan, which had been mentioned before.
However, Ye Rong had just used the Quejin Jade Plate and was currently absorbed in gaining experience points. Leaving now would be too uneconomical, as he would lose millions of experience points every minute.
He could only send a letter back, saying that he was temporarily unavailable and was very sorry for not being able to join them.
