At a relatively shallow depth of ocean, our real knowledge of what goes on down below—and of what kind of creatures inhabit the midnight waterscape—is as primitive as our knowledge of conditions on Mercury. This fascinating volume focuses on one inhabitant of that realm, the lordly giant squid, long the subject of lore and legend.

July 28: Percy Bysshe Shelley and Mary Wollstonecraft Godwin eloped on this day in 1814.

Crime fiction legends Dennis Lehane and Michael Connelly discuss the new book that unites their beloved sleuths Patrick Kenzie and Harry Bosch.