The dramatic and action-packed story of the last mysterious place on earth—the world’s seafloor—and the deep-sea divers, ocean mappers, marine biologists, entrepreneurs, and adventurers involved in the historic push to chart it, as well as the opportunities, challenges, and perils this exploration holds now and for the future.

A SCIENCE NEWS MAGAZINE BEST BOOK OF 2023

A GLOBE AND MAIL BEST NONFICTION BOOK OF 2023