A Million Ways Home — Dianna Dorisi Winget

Poppy Parker's life has been turned upside down after her grandma (and guardian) ends up in the hospital. But Poppy, dog lover, artist extraordinaire, and fixer of problems, is working on a plan to spring Grandma Beth so Poppy can get out of the orphanage and things can go back to normal. But her plan falls to pieces when she witnesses a horrible crime, and suddenly normal slips even further out of her reach.

To keep Poppy safe, the budget-strapped police devise an unusual "witness protection program," where Poppy will stay with Detective Brannigan's mom. It's weird at first, but soon Poppy settles in, even making sort-of friends with a misfit girl named Lizzie and definitely making best friends with Gunner, a beautiful German shepherd with an uncertain future. But it's still not home. So while she and Lizzie navigate a rocky friendship and plot to save Gunner, Poppy also tries to figure out a new plan to rescue Grandma Beth and get home, all while avoiding a dangerous criminal who might be looking for her. But what if things can never go back to the way they were?