The town of Oakhurst is small but prosperous. The Hucrele merchant family connects it to some of the larger cities through their trade. The town is no stranger to adventurers due to the infamous Sunless Citadel nearby.
The townspeople know that the Citadel is infested with goblins. Those goblins contact the town directly every midsummer to sell an apple of perfect hue. The apple usually sells for about 50gp (the most the townspeople can bear to pay goblin-kind) and cures any ailment.
Many townsfolk have tried planting the seeds of the magic fruit but as soon as the twiggy saplings are about two feet tall they disappear. The townsfolk suspect the goblins steal them to maintain their monopoly.