About the Map
Essentially using the harry potter tent trick where what’s on the inside is bigger than the outside. This area was used for a nefarious NPC who was a druid, but one who betrayed his attunement to nature by making money off of selling exotic pets to various customers. Assassins, nobles, and wizards alike would come to him looking for rare or exotic creatures to study or own as a pet.
Tips From the Map Maker
It doesn’t have to be a magical pet store, could also be an enchanted prison, or maybe an ancient abandoned chamber with cages for who knows what. The possibilities!