When orphaned Mary Lennox comes to live at her uncle's great house on the Yorkshire Moors, she finds it full of secrets. The mansion has nearly one hundred rooms, and her uncle keeps himself locked up. And at night, she hears the sound of crying down one of the long corridors. The gardens surrounding the large property are Mary's only escape. Then, Mary discovers a secret garden, surrounded by walls and locked with a missing key. With the help of...

"Third-grader Aven Green has been solving mysteries for a whole month, cracking such cases as The Mystery of the Cranky Mom. But can this perceptive detective solve two cases at the same time? First her teacher's lunch bag disappears. Then Aven's great-grandma's dog goes missing. Fortunately, since Aven was born without arms, all the "arm" cells went to her super-powered brain instead. (That's her theory.) . . . " --