A wise, funny and moving story of what it means to find a family, from the best-selling author of I, Cosmo.

Leonard has never had a name. Or a body. Or a best friend. But he is excited to try being a human.

On their three-hundredth-birthday, every alien from Leonard’s home galaxy gets to spend a month in the body of an Earth Creature. Leonard was supposed to become a forest ranger in Yellowstone National Park—but there was a mix-up.

And now he’s stuck as a stray cat.

Luckily for Leonard, he meets a young human called Olive—and together they set out on a journey to find home.

A Waterstones’ Best Children’s Fiction Book of 2020

A Books for Topics Best Book of the Year

One of The Scotsman‘s Best Reads for Autumn

One of Waterstones’ Best Books for 9-12 Year Olds

Autumn 2020 Season Highlight in The Bookseller

“Bursting with compassion and gentle comedy, this adorable tale from the author of former Waterstones Children’s Book of the Month I, Cosmo relates how a three hundred year old alien accidentally ended up in the body of a cat – and what happened afterward . . . Gently surreal and thoroughly charming.” —Waterstones

“I love Sorosiak’s I, Cosmo, and this story of hope and home—with just a touch of ‘E.T.’—has just the same feel-good appeal.”The Bookseller

My Life as a Cat . . . is by turns hilarious, moving and eye-opening, providing a thought-provoking impression of our world from a character on the outside looking in.”—Sarah Mallon, The Scotsman

“In this heart-warming, funny and thoughtful novel, Carlie Sorosiak immerses herself once again in the mind of an animal. Neither Olive nor Leonard fit in to the world well; both are masking, pretending to be ‘normal’ so others don’t harm them. Olive’s anxiety about being ‘weird’ and her fear of being seen and judged by others are powerfully conveyed. Leonard’s emotional journey from alien to part of the family is moving. The story carries warm messages about making your own family, the wonder of being weird, and the importance of friends.”BookTrust

“Humanity isn’t just for humans in this earnest, heartfelt story . . . A comforting read about connection and compassion.”—Kirkus

“Wonderful, charming, funny, and heartwarming.”—Katie Tsang, best-selling author of Dragon Mountain

“The voice is so funny—imagine Sheldon from Big Bang Theory being an alien cat and you’re sort of there. Heartfelt and heroic—if I, Cosmo was a dog with the soul of a dancer, this is a cat with the soul of a park ranger!”—Ross Montgomery, acclaimed author of The Midnight Guardians

“Life on Earth is not what Leonard imagines, and he has no idea how to be a cat, but his relationship with Olive teaches him all he needs to know about human relationships and love… the tension keeps you reading, and persistence will repay the reader in abundance, with Sorosiak giving you an objective analysis on elements of life that are easily taken for granted.”The Irish Times

“So utterly special, absolutely soaked through with love not just for cats but also for everyone with a soul. Found family in every single sense of the phrase. Carlie Sorosiak is a wonder.”—L.D. Lapinski, acclaimed author of The Strangeworlds Travel Agency

“Clever and funny and heartwarming.”—Katherine Doyle, award-winning author of The Miracle on Ebenezer Street

“An incredible heart-warming story, with a wise cat protagonist you can’t help but fall in love with. My Life as a Cat is a beautiful tale, reminiscent of E.T.—LoveReading4Kids

“Utterly heartwarming, funny, sweet, compelling!”—Catherine Bruton, award-winning author of No Ballet Shoes in Syria

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US cover. Out with Walker Books now!

A golden retriever narrates a hilarious, heart-tugging tale of a dog and his humans as he tries to keep his family together while everything around them falls apart.

Ever since Cosmo became a big brother to Max twelve years ago, he’s known what his job was: to protect his boy and make him happy. Through many good years marked by tennis balls and pilfered turkey, torn-up toilet paper and fragrant goose poop, Cosmo has doggedly kept his vow. Until recently, his biggest problems were the evil tutu-wearing sheepdog he met on Halloween and the arthritis in his own joints. But now, with Dad-scented blankets appearing on the couch and arguing voices getting louder, Cosmo senses a tougher challenge ahead.

When Max gets a crazy idea to teach them both a dance routine for a contest, how can Cosmo refuse, stiff hips or no? Max wants to remind his folks of all the great times they’ve had together dancing — and make them forget about the “d” word that’s making them all cry. Told in the open, optimistic, unintentionally humorous voice of a golden retriever, I, Cosmo will grab readers from the first page — and remind them that love and loyalty transcend whatever life throws your way.

A Waterstones Paperback of the Year 2019

The Irish Independent’s No. 1 Book of the Year (9-12 Category)

Nominated for the 2020-2021 Maine Student Book Award

Nominated for the Young Hoosier Book Award

A Bank Street Best Book of the Year

A Kirkus Best Middle Grade Book of 2019

An Amazon Editors’ Pick for December 2019

A Junior Library Guild Selection

Waterstones Children’s Book of the Month, September 2019

A New Zealand Listener Best Book of 2019

A BookTrust “Books We Love” Selection for August 2019

The Dubray 8+ Favorite for August 2019


“Like any good dog, Cosmo is so funny, friendly, and loyal that he quickly became a dear friend, so much so that when I finished reading the book, I missed hearing his voice and picturing his shaggy face. Come back, Cosmo!”—Jim Gorant, author of the New York Times bestseller The Lost Dogs

“Cosmo’s narration combines wit, heart, stubbornness, and a grouchy dignity, all ably tugging at funny bones and heartstrings alike. Sorosiak’s author’s note is a joyful celebration of dogs’ hidden humanity, one that’s reflected in her joyfully and painfully realistic tale of a struggling family and doggedly persistent canine companion.”Kirkus (starred review)

“Sorosiak offers Cosmo a combination of wisdom and innocence that feel truly dog-like as his warm voice conveys Max and Cosmo’s mutual affection—the steady and heartwarming constant in both their lives. Touching, bittersweet, and true, this book will appeal to anyone who has loved a pet.”School Library Journal (starred review)

“With Cosmo serving as a humorous and lovable narrator, I, Cosmo’s sensitive handling of divorce in a biracial family will appeal to readers who enjoy realistic fiction and, of course, anyone who loves stories about very good dogs.”BookPage (starred review)

“A thirteen year-old Golden Retriever with a taste for adventure (and bacon) Cosmo is a canine on a mission. He’s got to stop a break-up, protect his best friend Max, and bring everyone together again for one show-stopping, marriage-saving, dog-dancing finale. But when it comes to fixing families, it turns out life is more complicated than just learning the right steps. Stories as genuinely joyful as I, Cosmo don’t come along very often and our booksellers were instantly charmed by Carlie Sorosiak’s witty, moving tale of friendship and a family in crisis. A novel full of heart that has all the hallmarks of a modern classic.”—Waterstones

“Dog lovers will adore I, Cosmo. Heartwarming.”—Daily Express

“By turns moving and hilarious . . . I adored this, a genuine feel-good delight with the most lovable animal narrator I’ve read in ages.”—Fiona Noble, editor’s choice in The Bookseller (UK)

“An adorable story about love and loyalty and how they can sustain us during tough times, written with real heart.”—Sarah Webb, The Independent (Ireland)

“This gem has all the warmth and heart of Homeward Bound.”—Catherine Doyle, award-winning author of The Storm Keeper’s Island

“This charming, original story brings together the fun of canine freestyle dance and the heartbreak of divorce into a single, moving story about families, and what happens when no amount of effort and love is enough to keep them together. Fans of heartwarming doggy stories . . . will love this book.”BookTrust

“This tender middle-grade tale about the love between a human and a dog will touch the heart of animal-lovers everywhere. A must-read for dog fans.”Booklist

“A moving story told through the eyes of the family dog as he witnesses a break-up and provides the best sort of comfort to young Max.”—National Literacy Trust (UK)

“This is a must read story – something really different and special. Get the tissues ready!”—North Somerset Teachers’ Book Award (blog)

I, Cosmo is a joyful exploration of the inner world of dogs, a celebration of the relationship between a little boy and his best friend, and a kindly story about how families can confront and manage difficulties and move forward despite them. I loved it.”—Jill Murphy,

“A moving story about a family that is falling apart, and Cosmo, who must try to keep them together . . . I adored this!”—Lisa Corr, Dubray Grafton St. 

“Wise, funny and moving, this is an animal story with a difference (and a wonderfully unique hero).”—Scott Evans, “Best children’s books for animal lovers,”

“A masterpiece.”—Samuel Pollen, acclaimed author of The Year I Didn’t Eat

“This is a (very lightly) philosophical book about loyalty, love and living in the moment.”i News

“A very special and surprising book. It’s beautifully written, at one moment laugh out loud funny, the next, deeply moving, and there is something very comforting and healing about it . . . Cosmo is drawn so true to life that he works his magic from the pages.”—Perdita Cargill, co-author of Waiting for Callback

“Carlie Sorosiak’s striking middle grade debut is a love letter to dogs everywhere. Readers will cheer for Cosmo and Max with all their hearts. I, Cosmo soars!”—Ali Standish, award-winning author of August Isle

“So much heart and humor and love. Made my tail wag and my heart soar.”—Ross Montgomery, award-winning author of Max and the Millions 

“I was laughing from the first page . . . and by the end was in tears because Cosmo and his family had captured my heart.”—Katherine Webber, acclaimed author of Sam Wu is Not Afraid

“Cosmo is a very silly dog that likes any type of meat and will do anything to keep his family together, like sacrificing his time on walks to try and win a movie role in a dance competition. I would recommend this book to people who like meaningful stories with a little bit of funny and little bit of sad.”—Micah Baron, 7th grader, Atlanta, GA


There are two monsters in this story. One of them is me.

Ask anyone in Winship, Maine, and they’ll tell you the summer camp Quinn’s family owns is a magical place. Paper wishes hang from the ceiling. Blueberries grow in the dead of winter. According to local legend, a sea monster even lurks off the coast. Mostly, there’s just a feeling that something extraordinary could happen there.


Like Quinn falling in love with her best friend, Dylan.

After the accident, the magic drained from Quinn’s life. Now Dylan is gone, the camp is a lonely place, and Quinn knows it’s her fault.

But the new boy in town, Alexander, doesn’t see her as the monster she believes herself to be. As Quinn lets herself open up again, she begins to understand the truth about love, loss, and monsters—real and imagined.

A Bank Street Best Book of the Year

A Junior Library Guild Selection

A Booklist Top 10 YA Romance of 2018

Featured in Bustle’s “The 11 Best YA Books Coming Out in June 2018”

One of Hypable’s Best Books of June 2018

A Brit + Co. Pick: “12 New Young Adult Books to Add to Your Summer Reading List”

A ParnassusNext Selection 

A Once Upon a Book Club Selection

A Bookish Box Selection

“Lovely and heartbreaking.”Jennifer E. Smith, author of Windfall

“Infused with hope and tinged with magic, Wild Blue Wonder is an engrossing story about family, grief, and the kind of beauty that only comes with letting oneself love again. This book stole every single one of my breaths.”Ashley Herring Blake, author of Girl Made of Stars

Wild Blue Wonder is a glittering dream of a book. It captured my heart with its equal strokes of grief, beauty, and hope. Like the Sawyers themselves would say, it is both magic and trueand I wanted to linger a little longer in Winship with them, hanging paper wishes from the rafters even after the final page.”Emily Bain Murphy, author of The Disappearances

“A striking examination of love—of friends, of family, of self—as well as of grief . . . This is a soft and lovely exploration of how life can freeze at the point of tragedy, and of a girl who learns to thaw.”Booklist (starred review)

“Surges with emotion. Sorosiak has created a family whom readers will connect with in all their messy, genuine sincerity.”Publishers Weekly

“Filled with science, summer camps and secrets, this is an uplifting and touching look at grief, guilt and giving yourself permission to love again.”Lauren James, author of The Loneliest Girl in the Universe

“A beautiful story.”Bustle

“This stunning novel about love, loss, and lake monsters is just the excuse you need to splurge on a summer must-read.”Brit + Co. 

“The perfect book for lazy, hazy summer afternoons . . . With touches of magical realism grounded in hard-won emotional truths, fans of Emily Henry, Morgan Matson, and Courtney Stevens will find much to love in Wild Blue Wonder.Parnassus Books

Out with HarperTeen US & Macmillan UK now

Other languages: Spanish, German, French


Love is what happens when you’re looking for something else. 

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Linny has been fascinated by disappearances, ever since her sister Grace ran away in the middle of the night without saying goodbye. Sebastian can tell you how many galaxies there are, and knows how much plutonium weighs. But the one thing he can’t figure out is the identity of his birth father. They’ve never met, but Linny and Sebastian have one thing in common: an obsession with famous novelist and filmmaker Alvaro Herrera, who went missing three years ago and has just reappeared. As they learn more about the mystery of Alvaro, Linny and Sebastian uncover the answers they’ve been searching for. With humor and heart, debut author Carlie Sorosiak weaves a story of finding people who leave and loving those who stay, perfect for fans of Jandy Nelson and Emery Lord.

A Most Anticipated June Release from B&N Teen Blog

Pan Macmillan’s One of the Best Children’s Books for Summer

One of the 10 Best New Young Adult Books in June 2017 from Paste Magazine

A Featured Summer Book from Lovereading4kids

A 2017 B.I.T. Pick at Changing Hands Bookstore

Nominated for an Epic Reads Book Shimmy Award, “Under the Radar” Category

“It’s the rarest author who can pull off laugh-out-loud hilarious, profound, and breathlessly romantic, all in the most sparkling prose. That shortlist includes Rainbow Rowell, Nicola Yoon, and now, Carlie Sorosiak.”Jeff Zentner, Morris Award-winning author of The Serpent King and Goodbye Days

Available in the following countries: US + Canada (HarperTeen); United Kingdom + Commonwealth (Macmillan); Spain (Penguin Random House); Germany (Arena Verlag); China (21st Century Books); Sweden, Norway, Finland (Stabenfeldt)