In Book 2 of the My Pet Slime series, Piper and Cosmo are on a mission to find Piper’s lost Grandma Sadie!
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When 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.
