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!

IndieBound | Amazon | B&N

When Piper's Grandma Sadie suddenly disappears, Piper knows she and Cosmo will have to find a way to save her. With the help of an unlikely friend, Piper discovers more about her own strengths, the origin of Cosmo, and working together to help solve mysteries.