Bag of rooms

This bag contains a deep hole with cobblestone floors at the bottom. 

Unlike the bag of holding this bag requires a ladder or rope to descend and will morph to fit the person climbing down. once reaching the bottom, there is a medium to a large-sized room that is lined with dark magical wood. 

dimensions 20ft x 25 feet to 30 x 40 ft.

the room is normally cold or freezing and players feel chills a draft from the bag like the inside of a cellar.

if food is placed inside players may encounter food is missing or eaten, either by rats or something else?

some bags linked to other bags and some holders may encounter each other if this happens players can leave through either