A treasure map of an ancient city leads you to Henders Farm, where Henders uses the ruined walls of the palace as his field boundary markers. Your map indicates that the entrance to the treasury is under his wheat field, and other interesting sites under his other fields.
Henders wants compensation for a year’s ruined crops before he will let you excavate. 500 gold for the wheat field? 100 gold for each other field you excavate, except 200 for the hay. He needs the hay to feed his animals over the winter. (These prices are double his expected return on his crops.)