Marion (Molly) Prewett had stolen G1 260 from the Harry Potter trust vault. By Gringotts rules, she was required to pay to Harry 110 percent of what she had stolen, or G1 386. Because of Acting Chief Witch Bones upholding Arthur Weasley’s spoken divorce decree against Marion/Molly Prewett, all the money that had been Prewett’s was given to Arthur, except for the G874 that had been in her secret vault. This meant that Molly did not have enough money to be applied towards the G1 386, and no property to be seized. By the rules of Gringotts, the next time that Marion Prewett stepped into Gringotts, she would be arrested, tried and—since she had stolen money that she could not pay back, later on—beheaded.