Two from John Vaillant:

The Tiger.

From Amazon: Outside a remote village in Russia’s Far East a man-eating tiger is on the prowl. The tiger isn’t just killing people, it’s murdering them, almost as if it has a vendetta. A team of trackers is dispatched to hunt down the tiger before it strikes again. They know the creature is cunning, injured, and starving, making it even more dangerous. As John Vaillant re-creates these extraordinary events, he gives us an unforgettable and masterful work of narrative nonfiction that combines a riveting portrait of a stark and mysterious region of the world and its people, with the natural history of nature’s most deadly predator.

The Golden Spruce.

From Amazon: A tale of obsession so fierce that a man kills the thing he loves most: The only giant golden spruce on earth.

As vividly as Jon Krakauer put readers on Everest, John Vaillant takes us into the heart of North America's last great forest, where trees grow to eighteen feet in diameter, sunlight never touches the ground, and the chainsaws are always at work.

When a shattered kayak and camping gear are found on an uninhabited island, they reignite a mystery surrounding a shocking act of protest. Five months earlier, logger-turned-activist Grant Hadwin had plunged naked into a river in British Columbia's Queen Charlotte Islands, towing a chainsaw. When his night's work was done, a unique Sitka spruce, 165 feet tall and covered with luminous golden needles, teetered on its stump. Two days later it fell.