Thanks NetGalley for the arc! This is a cute story geared for older children. I misread and though it was more a picture book for toddlers. A bit above my four year olds capacity to follow along. Definitely a great read for school age children!

This is the third book in a series. Parts of it were a bit hard to understand because I had not read the previous two. The illustrations in this book are engaging. The chapters are short to keep young readers wanting to find out more. Overall, a nice book for kids.

This is the third book in the My Pet Slime series. I read the first one to my grandson, but missed the second. We read this one together and he enjoyed Piper and Cosmo's adventures. Cosmo is Piper's pet made from slime and when it was accidentally sprinkled with space dust, it comes alive. In the last book, Piper's grandma is kidnapped by an evil company MALA, but Piper and Cosmo help her escape. This book begins where the last one ends. Now they are on the run - Piper, cool scientist grandma, new bestfriend Clare and her pet slime of course. The adventures in this book included betrayal from Clare's Uncle Ricky, escaping from jail cell using origami, sliding down the longest, most twisty slide ever, a motorcycle race, and a rocket launch to Jupiter. Piper and Cosmo are wonderful friends, but Cosmo is sick. His color is fading and Piper figures the only way to save him is to ship him to Jupiter. Fortunately, they figure out what is wrong, so Cosmo will be around for another adventure. Each chapter is fairly short, has large, colourful, cute illustrations and is engaging and entertaining. Beginning chapter book readers will enjoy these stories. They have humor, suspense…and, of course, a rather surprising pet. I love the end pages that include "more to explore" with information on the origami cup used in the story, Sally Ride, Space X, and more! He enjoyed the idea that slime could become a pet and once again, we got out the recipe from the first book and made some slime to play with. We took turns reading pages of this one and he enjoyed using the pictures to figure out some of the vocabulary that was a bit difficult for him. I recommend this one for children as young as 5 (if an adult is reading it to them) and for independent readers as young as 7 or 8.

This is a cute book that I think many of my students would enjoy. We use the epic! Platform all the time in my classroom, and I have seen many of my students read the other books in this series, so I know they would love this one as well. I like that the book is illustrated and that the chapters are short. This is great to keep kids’ attention. Another great thing about this book is the language, it is accessible and would be easy for many kids to read and comprehend. Overall, I think this is an awesome book that will hold the interest of many young readers!

Slime is very popular among the the young students. A slime became a pet in a story book it's an interesting character. The illustrations are cute and colorful. The vocabularies are easy. It's good for young graders.

This is the third book in a series. When Piper finds out that her Pet Slime comes to life, everything turns weird!! She must make sure Cosmo stays alive and help everything else going in her life!! This would be a great read aloud for a classroom or just to have in a classroom library!!

This title is the third entry in the exciting children’s series about Piper and Cosmo. The books are best read in order as the adventures build. That said, readers new to the series are brought up to date in the first chapter.

Each chapter is fairly short, has illustrations and is engaging and entertaining. Beginning chapter book readers will delight in these stories. They have humor, suspense…and, of course, a rather surprising pet.

As this story opens, Piper, her grandmother, Cosmo (the pet slime), and Piper’s friend Claire are being held in at the headquarters of Ma La, a dangerous corporation. Will they escape? Who are the bad guys? Are there any good guys? How does Cosmo help the characters to figure this out? How do Piper and the others use their skills, including origami, to help themselves?

The novel will have readers racing through the chapters as they wait to see what happens. They will enjoy seeing how clever and empowered Piper is as she plots her escape. They will also be interested in what happens at Piper’s grandmother’s lab and more.

Adults will appreciate the bits of education in the novel. Children learn a little about Jackson Pollock and Banksy. They also find out a bit about Sally Ride, Albert Einstein and DaVinci. There are also science facts.

This book is recommended for young readers. It will entertain them as they also learn a little. In a section at the end of the book, kids will learn how a glass can help them to hear through walls, how to make an origami cup, who Sally Ride was and something about SpaceX.

Many thanks to NetGalley and the publisher for this title. All opinions are my own.

Cosmo is really cute and I liked the action-adventure plot going on. I just wished there was more illustrations because they are all so cute! I think this is a fun book to read, especially for children. It has the right amount of action, plot, and adorableness.

This was an absolutely fantastic and fun story. I love reading about Cosmo! The whole adventure really makes me wish I could have my own pet slime.

I received this book from the publisher via NetGalley in exchange for an honest review.

I got this book without reading the first two, so it took my kid a while to get into the story, I had to fill in on the gap for her using my imagination.

Overall, very cute story, Piper accidentally got very precious space dust on her pet slime, and it came to life. Now she's on the run with her ultra- cool scientist grandma, bestfriend and her pet slime of course. The adventures in this book included betrayal from Uncle Ricky, escaping from jail cell using origami art, sliding down the longest, most twisty slide ever, and rocket launch to Jupiter.

Mix with the story are dropped knowledge from Albert Einstein's "Energy equal mass x speed of light squared, Sally Ride, first American woman in space and the portfolio career of Da Vinci. I also love the wisdom of this paragraph "You dont have to apologize. You Trusted someone. There's nothing wrong with that. It's the sign of a good person".

Very good book.

Read and reviewed by seven-year-old Amy.
Thanks, NetGalley, for the ARC copy of this book.
This is a very interesting chapter book. The main character of this book is Piper. Piper makes slime into a pet and calls it Cosmo. Piper and Cosmo are great friends and are very happy together. Everything in their life is good until one day when Cosmo falls ill. Will Piper be able to save Cosmo or lose it forever? Read this fun-filled adventure to find out.
I loved the themes of this book, which are friendship and never giving up.
I recommend this book to children five years and above.
I give this book 5/5 stars because it is fun to read, and I enjoyed it a lot. I would love to read more books in this series.

What a sweet, endearing adventure in this continuing story featuring Piper and her magical pet slime, Cosmo—this time in a strange and mysterious plot worked by the MaLa corporation.

Without getting any pleasure from it, I have to say this third and final book in this series was a big let-down from the quality of the previous two. I know they were very childish – colourful but basic illustrations aiding us through the drama of a girl and her pet slime that comes alive with the help of the space dust that her Grandma Sadie has just brought back to earth, but they were entertaining with it. This one does have some good bits – the 'is he a goodie or a baddie dilemma', the escape, the lessons in artists – oh, hold on. I can't remember if we had those before or not, but it strikes me they were just not in keeping with the mindset of our young heroine and her efforts to get her and her slime pet, Cosmo, to safety.

More importantly, everything the book does with a Reithian mindset of edutainment is ruined. The whole 'Grandma Sadie is an astronaut' thing was stupid to begin with – not childish, but stupid. And the increasing unrealism of the whole space science element to the plot really jars when the book is trying to hide that with facts. <spoiler>You can't just give us information about astronauts' ice cream and hope to get away with someone knocking on the door of a shuttle with its engines coming up to full throttle and just handing something over through the door. You can't marry talk of family being important with a character that is just risibly daft.</spoiler> Also, the narrative flow is weaker here in this book – the midpoint lull between action scenes where we get a history of science lesson and a whopping great recap of Cosmo's origin story is right into the doldrums of this world.

I know the young reader will not notice these things, and the audience already invested in the saga here will love every page of its conclusion, but there were too many duff steps for me to really appreciate this. It might not be the final book we get from this world, although I suspect it is – and I do suspect it's driven me away. Which is a shame, as the first two books were definitely on the commendable side. Two and a half stars.

A sweet and quirky adventure! The story follows a girl and her magical pet slime! This is the third book in the series and it was such a fun read. Filled with adventure and really cute artwork this is a great read for any kid!

*Thanks Netgalley and Andrews McMeel Publishing for sending me an arc in exchange for an honest review*

My daughter LOVES this series so much and I am excited to leave a review for Saving Cosmo! The illustrations are so cute and fun. The story is full of action to keep young readers engaged and turning pages. I love how at the end there is "more to explore" with information on the origami cup used in the story, Sally Ride, Space X, and more! Such a nice addition to this sweet sci-fi for kids. The series inspires my kids so much to play with slime and call it their pet!

This is a fun, action packed book for kids to read on their own. It has short chapters and short paragraphs so it’s not overwhelming for kids who may struggle. The illustrations were cute too!