Jill Santopolo, a children's book editor, grew up in Hewlett, New York. She graduated from Columbia University and received a MFA from Vermont College. She is the author of two middle grade mysteries as well as the Sparkle Spa series and lives in New York City. You can visit her online at JillSantopolo.com.

When Aly and Brooke decide to give PET-icures to puppies, it seems like their new Sparkle Spa salon might just go to the dogs! At Aly and Brooke's new nail salon, anything goes. Well, almost any thing. One of their mother's regular clients doesn't go anywhere without her beloved dog Sadie, who's a canine star. One paw leads to another, and the girls not only polish Sadie's nails, but also hatch a scheme to do doggy makeovers for the Annual Pup Adoption Day at the local shelter. But dogs aren't exactly ideal mani-pedi customers, are they? The girls are finding out the ruff way!