The Lockup is a location from The Legend of Zelda: Breath of the Wild. It is a prison located inside the dungeon of Hyrule Castle, in the Hyrule Field region of Central Hyrule. Several monsters can be found within the cells, and Link can free and fight them or ignore them. Some of the cells have Weak Walls allowing access into other cells or to hidden items. A Stalnox is found in one cell, and according to a Stone Tablet located in the room, it is part of the "Test of the Royal Guard". Defeating this Stalnox will grant a Treasure Chest containing the Hylian Shield, the strongest shield of the game.