The Golden Spiders by Rex Stout

Nero Wolfe was almost as famous for his wealthy clients and extravagant fees as for his genius at detection. So why has he accepted a case for $4.30? And why have the last two people to hire him been ruthlessly murdered? Wolfe suspects the answers may lie in the story of a twelve-year-old boy who turns up at the door of his West Thirty-fifth Street Brownstone. In short order, Wolfe finds himself confronted by one of his most perplexing and pressing cases, involving a curious set of earrings shaped like spiders dipped in gold. The case is all boiling down to a strange taste of greed—and a grumpy gourmand's unappeasable appetite for truth.