'A contender for the earliest female amateur detective, Hagar is a 'Gypsy Detective', beautiful in a dark Romany way, sensuous and intelligent, who runs a Lambeth pawnshop she inherited from her uncle where she solves crimes brought to her by her customers. She solves her crimes more by common sense than by deduction, but it's a great way to build customer loyalty.'
Source:
Russell James, Great British Fictional Detectives, UK: Remember When, 2009, p.191.
Adaptation of the third chapter of Hume's work, 'The Second Customer and the Amber Beads'.
When a rich widow is strangled, her amber beads end up in a pawnshop run by a young Romani woman, Hagar, who has a talent for solving her customers' mysteries.