Aunt Eloise invites Nancy, Bess, and George to New York to help a friend who has been swindled out of a sizable sum of money. There, the girls see a performance of a magicians' group who stun their audiences with clever sleight-of-hand tricks. Because the magicians temporarily remove people's wallets and handbags, Nancy feels the actors aren't above suspicion. Her hunch is borne out and a whirlwind chase ensues.

When Nancy’s aunt’s friend is swindled out of a sizable sum of money, she invites Nancy, Bess, and George to New York to help figure out who is behind the theft. There, the girls see a performance of a magicians’ group who stun their audiences with clever sleight-of-hand tricks. Because the magicians temporarily remove people’s wallets and handbags, Nancy feels the actors aren’t above suspicion. But will her hunch lead them to solve the case?

Nancy receives an urgent call from her Aunt Eloise in New York, requesting her help in solving a mystery. Her neighbor's granddaughter, Chi Che Soong, has gone missing! Nancy and her friends fly to New York to help track down the missing girl.

When Nancy Drew eagerly agrees to help her lawyer father solve the mystery of the glowing eye, she has no way of knowing that it will involve the kidnapping of her close friend Ned Nickerson. A puzzling note in Ned’s handwriting set Nancy and her friends Bess and George on a hazardous search for a bizarre criminal. From their base of operations, the Emerson College campus, the three girl detectives and Ned’s college pals follow a maze of clues to locate the kidnapper’s hideout and rescue Ned. Not only is Nancy greatly worried about Ned, but also she is alarmed by the high-handed methods of a woman lawyer who tries to take the case away from her. Readers will follow Nancy’s exciting adventures as she unravels this dangerous web of mystery.

From the moment Nancy Drew boards an ocean liner leaving for New York, she becomes involved in a new and dangerous mystery. A man on the pier gestures to someone on board in sign language. BEWARE OF NANCY DREW AND NE, he signals. Who is NE? Can it be Nelda Detweiler, a young woman who shares a cabin with Nancy, Bess, and George? Mystery and intrigue follow the girls across the ocean; but with her usual ingenuity Nancy solves the mystery and defeats her enemies before the ship reaches New York.

By mistake Nancy Drew receives a letter from England intended for an heiress, also named Nancy Drew. When Nancy undertakes a search for the missing young woman, it becomes obvious that a ruthless, dangerous man is determined to prevent her from finding the heiress or himself. Clues that Nancy unearths lead her to believe that the villainous Edgar Nixon plans to marry the heiress and then steal her inheritance.

Nancy and her friends Bess and George spend an exciting week exploring a mysterious zigzag house with its fantastically crooked staircase, its bizarre serpent picture, and an unpredictable robot that nearly causes the young detective to lose her life. But despite the threat of danger from the robot, Nancy is determined to solve the mystery of the weird house and to locate the missing owner who is wanted by the police. It takes keen logic and quick thinking for the young detective to plow through the tangled thicket of clues and find the key to this complex puzzle. With the help of her friends, Nancy captures an elusive swindler and uncovers the secret of the crooked banister, but not before they have several hair-raising adventures – one on a broken bridge over flaming water, another in a hidden room with poisoned portraits!