Civil War Sub: the Mystery of the Hunley (Penguin Young Readers, Level 4)
This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases In 1864, during the Civil War, the C.S.S. Hunley became the first submarine in the world to sink an enemy ship. The Hunley and its crew mysteriously vanished. What happened on that cold winter night? After over a century, scientists finally