Middle Grade Mondays: Liesl and Po by Lauren Oliver

From Goodreads: Liesl lives in a tiny attic bedroom, locked away by her cruel stepmother. Her only friends are the shadows and the mice, until one night a ghost appears from the darkness. It is Po, who comes from the Other Side. Both Liesl and Po are lonely, but together they are less alone. That same night, an alchemist’s apprentice, Will, bungles an important delivery. He accidentally switches a box containing the most powerful magic in the world with one containing something decidedly less remarkable. The box that was switched is actually the ashes of Liesl’s father, who has recently died. With Po’s help, Liesl runs away from home, determined to bury her father’s ashes near a tree at her childhood home. Little does she know she’s...