Empty box

The Empty box is what the player is left with after they hand the contents of the Heavy box to Queen Sigrid on Etceteria during the quest Royal Trouble. After the quest is complete, it has no use and can be discarded.

Trivia

 * The examine "It says 'To the dungeons' on the side" is a reference to the game series since the protagonist of Metal Gear Solid, Solid Snake, can use cardboard boxes with "To the _____" printed on the side to sneak around in (With _____ being one of three in-game locations depending on which cardboard box is currently being worn).