Invincible Armada in 1588 was sent by the King of Spain to conquer England. Four centuries later, off the coast of Ireland, Robert Stenuy managed to find the wreck of the Spanish ship Hirona, which was part of the Invincible Armada. The author, a renowned Belgian underwater archaeologist, talks captivatingly about the search for the remains of the ship. He introduces the reader to the era of great geographical discoveries, reinforcing an interesting description with documentary materials he found over many years of work in the archives of various countries.