Inspired by Joan of Arc, a girl builds and pilots a submarine to prove just what girls can do in this masterful middle-grade debut. Fourteen-year-old Mary Murphy talks to Joan of Arc, is failing science, and might lose her scholarship to her Catholic school, Our Lady Star of the Sea. Her father wants to send her away to live with an aunt she barely knows, and a lurking social worker is suspicious of Mary's latest black eye. But Mary doesn't want...

Sharkey, a Sunker, has lived as a false hero but must now become a real one to help Petrel, Fin, and the crew of the Oyster in a fight against the Devouts.

In the present day, Pitt makes a daring rescue from inside an antiquated submersible in the waters off New York City. His reward afterwards is a document left behind a century earlier by legendary detective Isaac Bell--a document that re-opens a historical mystery. In 1911, in Colorado, Isaac Bell is asked to look into an unexplained tragedy at Little Angel Mine, in which nine people died. His dangerous quest to answer the riddle leads to a larger...