Hilda Adams' life as a nurse has become a bit dull. As she approaches 30, she sees long, monotonous years of trained obedience to orders ahead of her. But a rascally patient, a police detective, sees in her the intelligence and discretion of a born criminal investigator. People confide in a private nurse; she could unearth clues that can crack a case. Her first case is the disappearance of Clare March, a wealthy debutante who has been missing without a trace for a month. Miss Adams is hired to live in and tend to Clare's hysterical mother. In the middle of her first night on duty, as she is getting a snack, she watches as a little old lady furtively comes down the stairs, carrying a large buckled bag....

Mary Roberts Rinehart was known as the American Agatha Christie for her many short stories and novels of mystery and suspense. Locked Doors is the second of her Nurse Hilda Adams stories. Nurse Adams is charged with the care of two young boys in a home full of conundrums. Both parents are fearful but refuse to leave their home and won't say why. The rugs have been rolled up and the furniture piled into the middle of each room. Their anxiety is catching, as Miss Adams too furtively watches for danger as she searches for clues. Why, she wonders, do they lock every door in the house? And who or what is the menace that terrifies them?

After a suspicious death at a country mansion, a brave nurse joins the household to see behind closed doors Miss Adams is a nurse, not a detective―at least, not technically speaking. But while working as a nurse, one does have the opportunity to see things police can’t see and an observant set of eyes can be quite an asset when crimes happen behind closed doors. Sometimes Detective Inspector Patton rings Miss Adams when he needs an agent on the inside. And when he does, he calls her “Miss Pinkerton” after the famous detective agency. Everyone involved seems to agree that mild\-mannered Herbert Wynne wasn’t the type to commit suicide but, after he is found shot dead, with the only other possible killer being his ailing, bedridden aunt, no other explanation makes sense. Now the elderly woman is left without a caretaker and Patton sees the perfect opportunity to employ Miss Pinkerton’s abilities. But when she arrives at the isolated country mansion to ply her trade, she soon finds more intrigue than anyone outside could have imagined and―when she realizes a killer is on the loose―more terror as well. Reprinted for the first time in twenty years, Miss Pinkerton is a suspenseful tale of madness and murder. The book served as the basis for a 1932 film with the same title, and its titular character appeared in several others of Rinehart’s most popular novels.

A dowager is being scared to death in this classic whodunit by a #1 New York Times–bestselling master who “helped the mystery series grow up” (The New York Times). It’s enough to stop Eliza Fairbanks’s heart. At least that’s what the elderly widow claims is being done to her. First, someone unleashes a cloud of bats in her locked bedroom. When that doesn’t do the trick, next comes a pack of rats to claw at her toes. Special duty nurse Hilda Adams, aka “Miss Pinkerton” to the Homicide Bureau, believes Eliza’s every rattled fear is true. She may be frail—but she’s not batty. What Eliza is, is very, very rich. Out of the shady and oddball assortment of relatives swarming the mansion, someone clearly has an eye on the Fairbanks fortune. Now it’s Hilda’s job to keep an eye on Eliza before a potential killer resorts to more definitive means. And considering all the bad blood running through the heart of the Fairbanks family, it might already be too late to save her charge.

Three tales from a mystery master whose “literary distinction lies in the combination of love, humor and murder that she wove into her tales” (The New York Times). The Episode of the Wandering What’s a mother to do? When her daughter-in-law is slashed to death, the first thing is to hide the hunting knife that’s sure to implicate her innocent son. But it doesn’t stay hidden for long. It’s just turned up in a second victim, only to vanish once again. Whatever the cunning motive is for the ghastly crimes, the game of hide-and-seek with a deadly weapon is just beginning. The Man Who Hid His A woman’s been found strangled in her bed. The only other person in the house is her daughter, Emma. Given Emma’s motive for wanting to escape the clutches of her domineering mother, the case seems open and shut. Except Inspector Tom Brent insists Emma couldn’t possibly have done it. His career depends on proving it. And it all starts with a very peculiar breakfast. The Hilda Adams, the Homicide Bureau’s undercover “Miss Pinkerton,” is enlisted to investigate the odd behavior of Tony Rowland. The woman has suddenly broken off her engagement to a man she loves, crashed a car, and now keeps her elderly mother locked in her room. Does the Rowland family have reason to fear the neurotic woman? Or is Tony herself the one who’s afraid? If so, of what?