Brendan Murphy

In a ranch south of Texas, the man known as The Executioner dumps 500 body parts in metal barrels. In Brazil's biggest city, a mysterious prisoner orders hit men to gun down 41 police officers and prison guards in two days. In Southern Mexico a meth maker is venerated as a saint while enforcing Old Testament justice on his enemies. A new kind of criminal kingpin has arisen: part CEO, part terrorist, and part rock star, unleashing guerrilla attacks, strong-arming governments, and taking over much of the world's trade in narcotics, guns, and humans.

When Forrest Fenn was given a fatal cancer diagnosis, he came up with a bold plan: He would hide a chest full of jewels and gold in the wilderness, and publish a poem that would serve as a map leading to the treasure's secret location. But he didn't die, and after hiding the treasure in 2010, Fenn instead presided over a decade-long gold rush that saw many thousands of treasure hunters scrambling across the Rocky Mountains in pursuit of his fortune.

During a time when most wild animals are experiencing decline in the face of development and climate change, the intrepid mountain lion - also known as a puma, a cougar, and by many other names - has experienced reinvigoration as well as expansion of territory. What makes this cat, the fourth carnivore in the food chain - just ahead of humans - so resilient and resourceful? And what can conservationists and wild life managers learn from them about the web of biodiversity that is in desperate need of protection?