DAVID GRANN is a longtime staff writer at The New Yorker. He has written about everything from New York City’s antiquated water tunnels to the Aryan Brotherhood prison gang, from the hunt for the giant squid to the mysterious death of the world’s greatest Sherlock Holmes expert. His stories have appeared in several Best American writing anthologies, and he has written for The New York Times Magazine, The Atlantic, The Washington Post, The Wall Street Journal, and The New Republic.

Acclaimed New Yorker writer and author of the breakout debut bestseller The Lost City of Z, David Grann offers a collection of spellbinding narrative journalism.

Whether he's reporting on the infiltration of the murderous Aryan Brotherhood into the U.S. prison system, tracking down a chameleon con artist in Europe, or riding in a cyclone- tossed skiff with a scientist hunting the elusive giant squid, David Grann revels in telling stories that explore the nature of obsession and that piece together true and unforgettable mysteries.

Each of the dozen stories in this collection reveals a hidden and often dangerous world and, like Into Thin Air and The Orchid Thief, pivots around the gravitational pull of obsession and the captivating personalities of those caught in its grip. There is the world's foremost expert on Sherlock Holmes who is found dead in mysterious circumstances; an arson sleuth trying to prove that a man about to be...