Piper Maclane wants a pet so badly, but she’s allergic to everything. So she creates her own . . . out of slime! Piper wishes she could have a pet to care for and snuggle with and take to school for show-and-tell. All of the other kids have one. But she’s allergic to every animal imaginable! So instead, she makes her own pet out of slime, with big eyes, a little mouth, and two arms just long enough for hugs. It would be the perfect pet for Piper, if it were real. When a strange turn of events brings her slime to life, Piper learns how fun, challenging, and messy it can be to care for a pet . . . especially one made out of slime! At the back of the book, learn about real-life slime and follow the recipe to create a “pet” of your own!

Piper wants a pet so badly, but is allergic to everything. So she creates her own—out of slime!

Piper and Cosmo are in a race against slime! Piper was beyond surprised when her slime magically came to life and became her adorable pet, Cosmo. Now she must deal with an even bigger shocker: Her grandma has gone missing. With the help of their new friend Claire, it's up to Piper and Cosmo to save Grandma Sadie!