Bella Olson

Ava’s got brains, bravery . . . and a party-hat-wearing magic chicken. Good thing, too, because she'll need all three. When eleven-year-old inventor Ava takes a wrong turn after school, she stumbles into a mysterious building that just happens to be run by an evil (and deeply odd) scientist named Dr. Heynis. Before she can say “bacon and cheese,” Ava...