Old School RuneScape uses the British convention for floor numbering: Ground floor, first floor, etc.
"Barb" redirects here. For the people often called "barbs", see Barbarian.
Banker tutor chathead

The banker tutor, whose name is Barb, is a non-player character located in Lumbridge, on the 2nd floor[?] of the Lumbridge Castle. She is the only tutor who does not teach players about an actual game skill. Instead, she teaches players about how the bank and bank PIN numbers work. In addition to that, she also serves as the banker within the castle, allowing you to have the option to store or collect items from her.

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