Freeman, Martha
Summary: Arthur Popper helps out in his family's Boulder, Colorado, junk store, Universal Trash. When it comes to ukuleles, peppermills, and rhinestones, Arthur knows what's what. When he finds a chipped teacup, Arthur realizes it is the key to solving a crime that only he knows about! With help from a supernatural sidekick, his best friend, and his annoying little sister, does Arthur have what it takes...
Format: text
Publisher / Publication Date: Simon & Schuster Books for Young Readers 2023