"Mr Potter, as I said, I would do what I can to get you into Gringotts, if you handed me the sword of Godric Gryffindor, but even my abilities are limited. Without a key, the vault cannot be opened. And even if you managed to track down the object, only Bellatrix Lestrange is permitted to open her vault. My hands are tied," Griphook replied and the whole table could see that the answer wasn’t satisfying Harry whatsoever.