The Mother Hunt
Rex Stout
 Lucy Valdon has recently been widowed by the accidental death of her husband, the novelist Richard Valdon. Lucy has a surprise waiting for her in her vestibule one evening: an abandoned baby, dressed, with a note pinned to a blanket. The note claims that the baby is Richard's son. Lucy wants to learn who the mother is. That information would help determine whether her husband and the mother had been intimate, and therefore the likelihood that the child is in fact Richard's. Wolfe is reluctant as always, but agrees to investigate. Archie examines the clothes that the baby was wearing and spots an unusual item: the baby's overalls have horsehair buttons, apparently handmade. After Archie draws a blank trying to track the buttons down via businesses in the garment trade, Wolfe tries a tactic that he uses to good effect in other cases. He advertises for information. The advertisement succeeds in prompting a call from someone who has seen a similar button, and when Archie follows up he eventually locates Ellen Tenzer in Mahopac, about fifty miles north of New York City. Miss Tenzer is a retired nurse who from time to time cares for babies temporarily. She is unwilling to help Archie, though, and orders him off her property. Archie complies, Miss Tenzer disappears, and the next day she is found, strangled, in her car on a Manhattan street. With that line of investigation closed to them, Wolfe and Archie try another. Lucy arranges for several of Richard's acquaintances to come to the brownstone. Wolfe asks that they each supply him with a list of all the women with whom Richard was in contact during a three month period roughly corresponding to the date of the baby's conception. A list of 148 names results, and it takes nearly four weeks for Archie, Saul, Fred and Orrie to verify that none of the women had an unaccounted for baby following the period in question. Finally, Wolfe decides to go for the swindle. His plan involves the Gazette, Lon Cohen's employer, and it succeeds in flushing the baby's mother from hiding. But then she is found dead, also strangled. When Inspector Cramer learns that there is a connection between the dead woman and Wolfe, he shows up at the front stoop, forcing Wolfe and Archie to flee via the back door. Wolfe is furious about the murders, particularly the second, and desperately wants to expose the killer himself. But if Cramer finds him, he will either have to tell Cramer about the search for the baby's mother or withhold evidence in a capital case. To avoid having to make that choice, Wolfe and Archie hole up in Lucy's house &mdash; she, her baby and her staff are away for a few days. While there, Wolfe has an insight about how the murderer and Ellen Tenzer might have become acquainted. That insight leads to the traditional Wolfe finale, with witnesses and suspects gathered together, but this time it's in someone else's house.