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Humphrey Series

Betty G. Birney
Humphrey, everyone’s favorite classroom pet, is starring in chapter books perfect for younger readers. Each adventure is full of hamster-iffic humor, friendship and fun.
Happiness According to Humphrey by Betty G. Birney
Available on (04-29-25)

Happiness According to Humphrey

Book 13
Paperback $7.99

Humphrey Series : Titles in Order

Book 13
Everyone’s favorite classroom pet is unsqueakably thrilled to be in a NEW-NEW-NEW novel to celebrate the Humphrey series’ 20th anniversary!

Humphrey is unsqueakably excited—a special guest is coming to Room 26! But when he sees who it is, he’s SHOCKED-SHOCKED-SHOCKED. The guest is a big dog! And Mrs. Brisbane doesn’t seem worried at all!

Luckily, this dog is very gentle. His name is Happy, and he’s come to help Humphrey’s classmates with their reading. Then they hear about more dogs—a friendly one who can do tricks and sing, and a beloved pet who has gone missing. Of course everyone wants to help find her.

Good thing Humphrey is so good at helping kids solve their problems. And he pawsitively loves to solve a mystery—even one involving a dog!

With a fresh voice and an engaging hamster’s-eye view of school, families, and treats to hide in a cheek pouch, Betty G. Birney’s Humphrey will elicit laughter and a new appreciation for classroom hamsters everywhere.
Book 12
The twelfth book in the beloved and award-winning school hamster series!
 
Spring has sprung and everyone at Longfellow School, including Ms. Brisbane’s class, are HAPPY-HAPPY-HAPPY! It also means Family Fun Night is coming up and all the students’ families are involved in making amazing circus activities.

Humphrey helps in many ways, but he can’t help but wonder about his own family. He doesn’t know anything about them. But when he thinks about all of the wonderful friends he has made at school and at his friends’ homes, he stops worrying.

Just like spring comes with lots of new things that grow and change, Humphrey’s family of classmates and friends will always be growing. And that’s just how he likes it.
Book 11
Humphrey’s eleventh adventure celebrates stories, writing, and the power of the imagination! 

Imaginations are running wild in Mrs. Brisbane’s class, but Humphrey is stumped. His friends are writing about where they would go if they could fly, but Humphrey is HAPPY-HAPPY-HAPPY right where he is in Room 26.

It’s pawsitively easy for Humphrey to picture exciting adventures with dragons and knights in the story Mrs. Brisbane is reading aloud. He has no trouble coming up with Plans to help his friends and tricks to entertain them. His imagination even goes a little too far when he wonders if Carlos’s imaginary friend might be a ghost.

If only his imagination wouldn’t disappear when he tries to write. Luckily, Humphrey likes a challenge, and Mrs. Brisbane has lots of writing tips that do the trick.
Book 10
Nominated for twenty-four state lists and the winner of seven, Humphrey really is everyone’s favorite classroom pet!

So many secrets are flying around Room 26 that Humphrey can barely keep track. Mrs. Brisbane knows a student is leaving, but Humphrey can’t figure out which one. (Even more confusing, Mrs. Brisbane seems unsqueakably happy about it.) The class is studying the Ancient Egyptians, and some of the kids have made up secret clubs and secret codes. Even Aldo is holding back news from Humphrey.

Humphrey’s job as classroom pet is to help his humans solve their problems, but all these secrets are making it HARD-HARD-HARD!
Book 9
It’s the HAPPY-HAPPY-HAPPY holidays for everyone’s favorite classroom pet!

The holidays are coming and Humphrey is unsqueakably excited. He loves to hear about all the different ways his friends in Room 26 celebrate and to watch them make costumes and learn songs for the Winter Wonderland pageant. (He even squeaks along!)

But with so much to do, will the holidays go according to plan? Do-It-Now-Daniel is having trouble practicing, Helpful-Holly can’t stop worrying about making presents for her friends, and Humphrey still has to find a gift for Og! Good thing Humphrey is one smart hamster who can help them all fill the season with JOY-JOY-JOY!

Nominated for twenty-four state awards and the winner of seven, the Humphrey series is a hit across the country. And he’s a One School, One Book favorite!
Book 8
EEK-EEK-EEK! Mrs. Brisbane is missing!

Humphrey has always investigated things, like why Speak-Up-Sayeh was so quiet and Tall-Paul and Small-Paul didn’t get along, but this is a true mystery–Mrs. Brisbane is missing! She just didn’t show up in Room 26 one morning and no one told Humphrey why. The class has a substitute teacher, called Mr. E., but he’s no Mrs. Brisbane. Humphrey has just learned about Sherlock Holmes, so he vows to be just as SMART-SMART-SMART about collecting clues and following leads to solve the mystery of Mrs. Brisbane (and a few others along the way).

Nominated for twenty-four state awards and the winner of seven, the Humphrey series is a hit across the country.
Book 7
A new school year and new friends for everyone’s favorite classroom pet!

Humphrey is excited to get back to Room 26 and see all his old classmates. But on the first day of school, a bunch of strange kids arrive and no matter how loudly he squeaks up, they don’t realize they’re in the wrong room! Finally Humphrey realizes that these kids are his new classmates, and he sets off to learn all about them.

He hasn’t forgotten about his friends from last year, and of course they miss him a ton. But when they start talking about taking him from Mrs. Brisbane’s room, Humphrey gets unsqueakably nervous. How could he say good-bye to Mrs. Brisbane and Og–not to mention his new friends–for good?
Book 6
The sixth book in the beloved and award-winning school hamster series!

When Humphrey hears that school is ending, he can’t believe his ears. What’s a classroom hamster to do if there’s no more school?

It turns out that Mrs. Brisbane has planned something thrilling for Humphrey and Og the frog: they’re going to Camp Happy Hollow with Ms. Mac and lots of the kids from Room 26! Camp is full of FUN-FUN-FUN new experiences, but it’s also a little scary. There are fur-raising wild sounds and smells, and there’s something called the Howler to watch out for.

Humphrey is always curious about new adventures, but could camp be too wild even for him?

Look for all twelve of Humphrey’s adventures!
Book 5
The fifth book in the beloved and award-winning school hamster series!

The students in Room 26 are learning about boats and building their own for a race on Potter’s Pond. Humphrey the hamster loves dreaming about being a pirate and watching his friends build ships. But when he mistakenly ends up at sea on the day of the boat race, he finds himself in the middle of more adventure than he bargained for! Humphrey is back in this charming story of a hamster on the high seas of hilarity.

Look for all twelve of Humphrey’s adventures!
Book 4
The fourth book in the beloved and award-winning school hamster series!

A classroom hamster has to be ready for anything, but suddenly there are LOTS-LOTS-LOTS of big surprises in Humphrey’s world. Some are exciting, like a new hamster ball. But some are scary, like a run-in with a cat and a new janitor who might be from another planet. But even with all that’s going on, Humphrey finds time to help his classmates with their problems. But will Mrs. Brisbane’s unsqueakable surprise be too much for Humphrey to handle?

Look for all twelve of Humphrey’s adventures!
Book 3
The third book in the beloved and award-winning school hamster series!

Humphrey loves to solve problems for his classmates in Room 26, but he never meant to create one! Golden-Miranda, one of his favorite students, gets blamed when Humphrey is caught outside of his cage while she’s in charge. Since no one knows about his lock-that-doesn’t-lock, he can’t exactly squeak up to defend her. Humphrey really has his paws full when Don’t-Complain- Mandy-Payne and her family stir up more big trouble. Humphrey manages to help Pay-Attention-Art and Sit-Still-Seth and even survives a trip to the vet, but can he clear Miranda’s name without giving up his freedom forever?

Look for all twelve of Humphrey’s adventures!
Book 2
The second book in the beloved and award-winning school hamster series!

After the holidays, Humphrey is shocked by a big surprise in Room 26-a new class pet! Humphrey tries to be welcoming, but Og the frog doesn’t respond to any of his friendly squeaks or visits (remember, he has a lock-that-doesn’t-lock). Plus, the students are so interested in Og, they almost stop paying attention to Humphrey altogether. Humphrey doesn’t like the mad-bad-sad feelings he’s had since Og came, but luckily he still gets to have adventures with different kids on the weekends.  Friendship can be tricky, but Humphrey is an intrepid problem-solver. If any hamster can become buddies with a frog, he can.

Look for all twelve of Humphrey’s adventures!
Book 2
El segundo libro en el serie de la mejor mascota de la clase–ahora en Espanol!

Hay una nueva mascota en el Aula 26: es una rana y se llama Og. Humphrey está deseando hacerse amigo de Og, pero Og no parece interesado. ¡Y, para colmo, los estudiantes están tan fascinados con Og que apenas prestan atención a Humphrey! Humphrey sabe que la amistad puede ser a veces algo complicado, pero si un hámster es capaz de hacerse amigo de una rana, ¡ese es Humphrey!

¡Humphrey es uno de los preferidos del programa ONE SCHOOL, ONE BOOK!
¡Los libros de Humphrey han sido nominados a diferentes premios en veinticuatro estados del país resultando ganador en siete de ellos gracias a los votos de los niños!
Book 1
The first book in the series about everyone’s favorite classroom pet!

You can learn a lot about life by observing another species. That’s what Humphrey was told when he was first brought to Room 26. And boy, is it true! In addition to having FUN-FUN-FUN in class, each weekend this amazing hamster gets to sleep over with a different student, like Lower-Your-Voice-A.J. and Speak-Up-Sayeh. Soon Humphrey learns to read, write, and even shoot rubber bands (only in self-defense, of course). With lots of friends to help, adventures to enjoy, and a cage with a lock-that-doesn’t- lock, Humphrey’s life is almost perfect. If only the teacher, Mrs. Brisbane, wasn’t out to get him!

Boys and girls can’t help falling in love with Humphrey! Kids will be eager to get their paws on all 12 books in the series! Be sure to look for Humphrey’s Tiny Tales for younger readers.
Book 1
El Mundo de acuerdo a Humphrey, un cuento encantador y gracioso, es la primera aventura de la mascota preferida de todos. !Bienvenido al Aula 26, Humphrey!


Puedes aprender mucho acerca de la vida observando a otras especies.

Eso es lo que primero le dicen a Humphrey cuando lo llevan al Aula 26. ¡Y vaya si es verdad! Además de sus escapadas en las clase, este increíble hámster va cada find de semana a dormir a la casa de un estudiante diferente. En poco tiempo, Humphrey aprende a leer ya a escribir, y a lanzar gomas elásticas, pero solo en defensa propia.. La vida de Humphrey sería absolutamente perfecta, si no fuese por esa maestra ¡que trata de deshacerse de el!
“Humphrey es simpático y de gran corazón. Ya la lectura de este libro es simplemente ¡buena-buena-buena!”—Kirkus Reviews

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