Campsite

The campsite  is  resting point between a certain amount of room on your runs. you got certain number of room. NPC are in the room where you can sell equipment,

forge weapon.

You cannot processes further before choosing one of these two option and when you do the all NPC will depart form the area.

Rest in the tent and get you HP back. (if you choose this option you will wake up in the morning all NPC gone and the Secret Area door close)

or

enter the Secret Area.