Luggage

Luggage was a magical construct made to look like a trunk. It could sprout hundreds of legs to travel with. It also had the ability to transform into both an armoire and a jewelry box (seen below). Its owner could rifle through a seemingly endless pile of clothes that Luggage held within it. However when someone jumped inside Luggage, or Luggage swallowed something, they would fall into what appeared to be a dark pocket dimension that traveled with Luggage.

History
Luggage was owned by Myst and Maz. Before that it was owned by the mysterious trader Lesion. Based on the contents of the Luggage, Maz believes it to be much older, and not created by Lesion.

She eventually came to learn it's previous owner was a crime lord in Belloskaya, Yekatr named Calib Tomikova. A painting of him as well as several of his books and his desk can be found inside luggage. This is where his personal journal was kept which ended mysteriously as the crime lord entered a remote cave.

Inside Luggage’s pocket dimension were many strange things from a box containing a painting imp, to an Inn sign, to a small river. It eventually ate six bombs made by Maz, a few members of a monk terrorist group, and a flaming skull.

For a brief period of time, Myst considered hiding away Adam Demos inside and smuggling him with their party, but ultimately decided against it after conferring with the rest of the Keystone Seekers.

Luggage's Rooms
Myst eventually took the time to map out the inside of luggage and built out this chart also containing the probabilities for her to enter each individual room: