There are 18 books in the Sammy Keyes series. The newest book is Sammy Keyes and the Kiss Goodbye which came out in 2014.

Sammy Keyes must be a magnet for trouble...
 
I mean it's bad enough that she has to live illegally in a seniors-only building with her grandmother while her mother tries to make it as a move star. And worse that she witnessed a burglary in progress--and that the theif saw…
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2
Sammy Keyes and the Skeleton Man

Sammy Keyes and the Skeleton Man
Everyone in Santa Martina knows about the Bush House. It's big, and dark, and no one knows who or what's inside. Nobody with any sense would go there-especially at Halloween. Except for Sammy Keyes. And when Sammy goes creeping up the path, only to be knocked sideways by a skeleton…

3
Sammy Keyes and the Sisters of Mercy

Sammy Keyes and the Sisters of Mercy
Sammy is spending her school detention time helping out at St Mary's church - boring, but peaceful, she reckons. Unfortunately not. A trio of singing nuns arrive in a motorhome, and prepare to turn the whole place upside down! Plus Father Mayhew's cross has disappeared, and his main suspect is…

4
Sammy Keyes and the Runaway Elf

Sammy Keyes and the Runaway Elf
And this new adventure is Wendelin Van Draanen's most complex and compelling yet! It's Christmastime in Sammy's hometown of Santa Martina, but some people are being very, very naughty. Pranksters dressed as wise men sabotage the Christmas Parade. In the ensuing chaos, some thugs dognap a prize Pomeranian. Then the…

5
Sammy Keyes and the Curse of Moustache Mary

Sammy Keyes and the Curse of Moustache Mary
When Sammy and her friends got to quiet Sisquane for new year with Dot's family, they don't expect to uncover a pioneer legend that's still very much alive and kicking. Moustache Mary was a heroine of her time - but she left her descendants with a family feud that doesn't…

6
Sammy Keyes and the Hollywood Mummy

Sammy Keyes and the Hollywood Mummy
The elusive Lady Lana (a.k.a. Sammy’s mom) ran off to Hollywood nearly a year ago to get “discovered.” But when Sammy discovers that her mom has changed her name, dyed her hair, and told everyone she’s only 25, she decides Lana needs a little reality check. I mean, it’s one…

7
Sammy Keyes and the Search for Snake Eyes

Book cover of Sammy Keyes and the Search for Snake Eyes
"The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)"—Midwest Children's Book Review

Sammy's softball team is in contention for the Junior Slugger's Cup, and all she wants to do is hunker down behind the home plate and catch strikes. But Heather Acosta brings new meaning to…

8
Sammy Keyes and the Art of Deception

Sammy Keyes and the Art of Deception
Sammy Keyes has a lot of nerve. Wearing high-tops to a fancy reception at an art gallery. Asking why a framed orange splot is worth $10,000. Eyebrows rise. Noses turn up.
But then Sammy tackles a thief who tries to break up the soiree with a stickup. Now
the patrons…

9
Sammy Keyes and the Psycho Kitty Queen

Book cover of Sammy Keyes and the Psycho Kitty Queen
Sammy's mom comes to town with a birthday bombshell...

"A strong female character looking for more than just a boyfriend. Highly recommended." --Children's Literature

It's Sammy's birthday, which should be a good thing, right? Not when her mom lets her cat out and now he's missing. Not when Sammy finds…

10
Sammy Keyes and the Dead Giveaway

Sammy Keyes and the Dead Giveaway
The bad news: Sammy’s made a deadly mistake.
The good news: No one knows she did it.
The delicious dilemma: Everyone thinks her archenemy Heather is to blame.
Now Heather’s in a major jam, and in some ways it’s only fair–Heather’s pinned more than a few crimes on Sammy. Besides,…

11
Sammy Keyes and the Wild Things

Book cover of Sammy Keyes and the Wild Things
With desperate poachers on their trail, Sammy and her fellow campers have just been added to the endangered species list.

"Think a combination of Carl Hiaasen's Flush and Janet Evanovich's "Stephanie Plum" and you'll be right on target" --School Library Journal

This is not the summer camping trip of Sammy's…

12
Sammy Keyes and the Cold Hard Cash

Book cover of Sammy Keyes and the Cold Hard Cash
A stash of easy money makes for some hard choices for Sammy Keyes.

"An exceptionally good entry in an already remarkable series."--Booklist

Sammy Keyes has three wads of cold hard cash in her hot little hands. An old guy gave them to her. Well, actually, he told her to throw…

13
Sammy Keyes and the Wedding Crasher

Book cover of Sammy Keyes and the Wedding Crasher
Sammy takes off her high-tops, puts on some party shoes, and steps into a whole lot of trouble.

"Sammy's investigation, friendships, family life, and wiseacre narration make this another rollicking addition to the series." --Booklist

Sammy should have known better than to think 8th grade would be easier than 7th.…

14
Sammy Keyes and the Night of Skulls

Book cover of Sammy Keyes and the Night of Skulls
"The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)"—Midwest Children's Book Review

After being chased by a man wielding a shovel, scared silly by a mummy, and attacked by Heather Acosta, Sammy and her pals decide they've had their fill of monsters and head home to…

15
Sammy Keyes and the Power of Justice Jack

Book cover of Sammy Keyes and the Power of Justice Jack
"The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)"—Midwest Children's Book Review

Sammy thought she'd seen all the weirdness her town had to offer—and then she met Justice Jack, Santa Martina's very own superhero. Well, really he's just a guy in spandex and a mask who…

16
Sammy Keyes and the Showdown in Sin City

Book cover of Sammy Keyes and the Showdown in Sin City
"The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)"—Midwest Children's Book Review

In this pivotal book in the Sammy Keyes series, Sammy tackles the persistent mysteries of her own life. Mysteries like: Who is her father? And why has her mother kept it such a secret?…

17
Sammy Keyes and the Killer Cruise

Book cover of Sammy Keyes and the Killer Cruise
"The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)"—Midwest Children's Book Review

Sammy knew that getting to know her new rockstar dad on a cruise would be a little uncomfortable. . . . But when the heiress to a perfume empire disappears from the ship, it…

18
Sammy Keyes and the Kiss Goodbye

Book cover of Sammy Keyes and the Kiss Goodbye
The final mystery starring Sammy Keyes: “the most winning junior detective ever in teen lit. (Take that, Nancy Drew!)” —Midwest Children’s Book Review
 
Sammy doesn’t go looking for trouble, but she seems to find it everywhere. She’s forever sniffing out clues and chasing down bad guys—and driving her friends a…