This is a story about the ship Henrietta Marie, which was a slave ship. In 1972, the ship was discovered after it sank in the Gulf of Mexico. The book goes a lot into how the slaves were treated and shipped, the conditions on the ship, and all the details about slavery. Marine archaeologists went deep into the gulf to study its remains and they were preserved and studied. There are some great pictures, maps, and drawings about everything that was discovered on the ship that you will be intrigued to the very end. ( )