Nancy Drew and the Hardy boys are in New York city together to investigate a pair of big-time cat burglers who are going to try to steal the spectacular crown jewels of Sarconne.

Hardcover edition originally published 2018.

When Nancy receives a letter informing her she’s heir to a fortune, she decides to track down the sender, as well as the other Nancy Drew.

Ned and Nancy track down a ghostly saboteur in the twenty-third book in the Nancy Drew Diaries series, a fresh approach to a classic series. Nancy and Ned are visiting Coffin Hall, an estate turned rare books library, doing research on the library’s rumored ghost for an episode of the NedTalks podcast when a fire breaks out in the records room. One of the library’s security guards accuses Ned of arson—after all, he was the only one in the room when the fire started—but Ned swears it wasn’t him. He was trying to stop the fire. He tells Nancy he saw a lady in blue right before the incident, and thinks it was Henrietta Coffin, the ghost of Coffin Hall! Nancy is confident her boyfriend is innocent, and she’s determined to identify the real culprit, though she’s pretty sure it wasn’t of the paranormal sort. When she investigates further, she learns that the fire was just the latest in a string of recent strange and inexplicable incidents plaguing Coffin Hall. It’s increasingly apparent that someone has more than a passing interest in shutting down the library. But who—or what—is responsible? And why?

Nancy Drew's keen mind is tested when she searches for a missing will.

Nancy, Bess, and George race to catch an international jewel thief in this eighteenth book of the Nancy Drew Diaries, a fresh approach to the classic mystery series. Nancy is helping out her Dad’s friend, Louise Alain, and her dog, Marge, at an upcoming dog show in Montreal. Marge is a professional and needs someone she can trust to handle her at the biggest show of the season. Nancy is happy to oblige, especially since Louise invited Bess and George as well! Of course, the three friends are investigating a crime within hours of their arrival. One of the show dogs was drugged and a giant wad of gum was matted into its hair. Louise asks Nancy to investigate and gives her a useful tip: look at the dogs—their temperaments and styles are often a good window into the hearts and minds of their owners. But instead of solving a case of competitor sabotage, Nancy discovers jewel thieves have been using the dog show circuit as a smuggling operation. The thieves are not comfortable with the teenage sleuth who’s asking too many questions. And when they make some serious threats, Nancy, Bess, and George quickly find themselves in dangerous territory. Can Nancy discover the thieves’ identity and take home the trophy? Or is this one case where the bite is worse than the bark?