Old Yen and Nie Guanting came back extremely exhausted with an energetic and happy Kwon Qianhong who somehow sold the land for 23 million gold.
Wu Long didn't delve into the exact way he did it, but it was fairly obvious he played multiple sides, effectively making it into a bidding war, and used a 'mysterious buyer' to rack up the price.
He also eventually sold the land in parts, not as a whole as none of the noble families and merchants around could afford to buy it in its entirety.
Wu Long praised the good work, and they prepared to move out.
All of the Helian Family's wealth, of course, would not simply flow into a common 'pile' of wealth of the Eternal Duality Valley, as there were considerations on the internal financial structure and proper accounting, but with Sui Luxiao by his side Wu Long did not have to worry.