Madame Badobedah and the Old Bones

"Mabel and Madame Badobedah are now fast friends and partners in adventure. When an expedition for dinosaur bones turns up only shells and seaweed, the ever-resourceful Madame Badobedah decides to lead their brave duo farther afield. But is the old villain up to her sneaky tricks again? A late night excursion to a locked museum has Mabel nervous, as does the emerald in Madame B's pocket. Mabel wants to be a great adventurer, not a thief! Then a friend from Madame Badobedah's very distant past turns up and reminds Mabel that her ancient friend is so much more than she appears -- and that Mabel, like generations of dreamers before her, has greatness in her bones"--