Go to Nagapur. Talk to the person upstairs and accept the "Cosmo Maiden" quest. Go to Crookfen and find the maiden. Fight the dragon (Bai ze) in the middle of map. Capture but do not complete the quest. Exit at the bottom of map at the southeast corner. Guest union will leave. Go back to Nagapur and talk to the same person. Choose the "Sure see you in a bit" option and repeat the quest until you have the desired amount of money. Bai ze sells for 28,800 gold.