At once an incredible adventure narrative and a penetrating biographical portrait, The River of Doubt is the true story of Theodore Roosevelt's harrowing exploration of one of the most dangerous rivers on earth.

The high points in the story of Alaska since the American acquisition are brought vividly to life through more than 100 characters, real and fictional.

In February 1959, a group of nine experienced hikers in the Russian Ural Mountains died mysteriously on an elevation known as Dead Mountain. Eerie aspects of the incident—unexplained violent injuries, signs that they cut open and fled the tent without proper clothing or shoes, a strange final photograph taken by one of the hikers, and elevated levels of radiation found on some of their clothes—have led to decades of speculation over what really happened.

When Germany invaded Poland, bombers devastated Warsaw - and the city's zoo along with it. With most of their animals dead, zookeepers Jan and Antonina Zabinski began smuggling Jews into the empty cages. Another dozen "guests" hid inside the Zabinskis' villa, emerging after dark for dinner, socializing, and, during rare moments of calm, piano concerts.

At age 24 Winston Churchill was utterly convinced it was his destiny to become prime minister of England one day, despite the fact he had just lost his first election campaign for Parliament. He believed that to achieve his goal, he had to do something spectacular on the battlefield. Despite deliberately putting himself in extreme danger as a British army officer in colonial wars in India and Sudan and as a journalist covering a Cuban uprising against the Spanish, glory and fame had eluded him.

It’s December 1997, and a man-eating tiger is on the prowl outside a remote village in Russia’s Far East. The tiger isn’t just killing people, it’s annihilating them, and a team of men and their dogs must hunt it on foot through the forest in the brutal cold. As the trackers sift through the gruesome remains of the victims, they discover that these attacks aren’t random: The tiger is apparently engaged in a vendetta. Injured, starving, and extremely dangerous, the tiger must be found before it strikes again.

At the onset of World War II, Williams formed Elephant Company and was instrumental in defeating the Japanese in Burma and saving refugees, including on his own "Hannibal Trek." Billy Williams became a media sensation during the war, telling reporters that the elephants did more for him than he was ever able to do for them, but his story has since been forgotten.

They live in shadows - deep in the forest, late in the night, in the dark recesses of our minds. They're spoken of in stories and superstitions, relics of an unenlightened age, old wives' tales, passed down through generations. Yet no matter how wary and jaded we have become, as individuals or as a society, a part of us remains vulnerable to them: werewolves and wendigos, poltergeists and vampires, angry elves and vengeful spirits.

In a race against time, behind enemy lines, often unarmed, a special force of American and British museum directors, curators, art historians, and others, called the Monuments Men, risked their lives scouring Europe to prevent the destruction of thousands of years of culture.

Twenty-five years after her passing, Audrey Hepburn remains the most beloved of all Hollywood stars, known as much for her role as UNICEF ambassador as for films like Roman Holiday and Breakfast at Tiffany's. Several biographies have chronicled her stardom, but none has covered her intense experiences through five years of Nazi occupation in the Netherlands. According to her son, Luca Dotti, "The war made my mother who she was."

America's highest military award, the Congressional Medal of Honor, was awarded to 440 deserving members of the "Greatest Generation" that served in World War II. But in 1943, before the war was even over, Allied leaders realized they needed another kind of award to recognize a different kind of World War II hero - animal heroes. Founded in 1943, the prestigious PDSA Dickin Medal is the highest award an animal can achieve for gallantry and bravery in the field of military conflict. It was given to 55 animals who served valiantly alongside the members of the Greatest Generation.

From one of the most respected figures in the dog-rescue community come the harrowing, funny, and inspiring stories of nine incredible dogs that shaped her life.

When the Iraq war began, conservationist Lawrence Anthony could think of only one thing: the fate of the Baghdad Zoo, caught in the crossfire at the heart of the city. Once Anthony entered Iraq, he discovered that hostilities and uncontrolled looting had devastated the zoo and its animals. Working with members of the zoo staff and a few compassionate U.S. soldiers, Anthony defended the zoo, bartered for food on war-torn streets, and scoured bombed palaces for desperately needed supplies.

As a SEAL on combat deployment in Iraq, Mike Ritland saw a military working dog in action and instantly knew he found his true calling. While the SEAL teams had used dogs in the past, they never had dogs trained specifically by SEALs, for SEALs. To fill this void, Ritland started his own company after he retired, training and supplying dogs for the West Coast SEAL teams. He knew that less than 1% of all working dogs had what it takes to contribute to the success of our nation’s elite combat units. He searched the globe for animals who fit this specific profile.

In Top Dog, Maria Goodavage takes listeners into the life of Lucca K458, a decorated and highly skilled military working dog. An extraordinary bond developed between Lucca and Marine Corps handler Chris Willingham, launching what became a legendary 400-mission career. A Specialized Search Dog, Lucca belongs to an elite group trained to work off-leash at long distances from her handler.

America's highest military award, the Congressional Medal of Honor, was awarded to 440 deserving members of the "Greatest Generation" that served in World War II. But in 1943, before the war was even over, Allied leaders realized they needed another kind of award to recognize a different kind of World War II hero - animal heroes. Founded in 1943, the prestigious PDSA Dickin Medal is the highest award an animal can achieve for gallantry and bravery in the field of military conflict. It was given to 55 animals who served valiantly alongside the members of the Greatest Generation.

The first installment in Giles Milton's outrageously entertaining series, History's Unknown Chapters: colorful and accessible, intelligent and illuminating, Milton shows his customary historical flair as he delves into the little-known stories from the past. There's the cook aboard the Titanic, who pickled himself with whiskey and survived in the icy seas where most everyone else died. There's the man who survived the atomic bomb in both Hiroshima and Nagasaki. And there's many, many more.

The year is 1925. It is sixty degrees below zero. The wind sweeps tons of snow over the deep-frozen Alaskan landscape. The nearest railhead is seven hundred miles away. Airplanes cannot fly. The way to Nome is blocked by a treacherous frozen sound, an icebound port, and mountains to the west. But there is a diphtheria epidemic in Nome. The children need serum from the outside world if they are to survive. Their only hope is a few chosen Eskimo drivers and their teams of dogs.

Flight technician Frank Williams and Judy, a purebred pointer, met in the most unlikely of places: a World War II internment camp in the Pacific. Judy was a fiercely loyal dog, with a keen sense for who was friend and who was foe, and the pair's relationship deepened throughout their captivity. When the prisoners suffered beatings, Judy would repeatedly risk her life to intervene.

In War Dogs, Rebecca Frankel offers a riveting mix of on-the-ground reporting, her own hands-on experiences in the military working dog world, and a look at the science of dogs' special abilities - from their amazing noses and powerful jaws to their enormous sensitivity to the emotions of their human companions. The history of dogs in the U.S. military is long and rich, from the spirit-lifting mascots of the Civil War to the dogs who lead patrols hunting for IEDs today.

In When Churchill Slaughtered Sheep and Stalin Robbed a Bank, the second installment in his outrageously entertaining series, History's Unknown Chapters, Giles Milton shows his customary historical flair as he delves into the little-known stories from history, like when Stalin was actually assassinated with poison by one of his inner circle; the Russian scientist, dubbed the "Red Frankenstein", who attempted to produce a human-ape hybrid through ethically dubious means; and much more.

The centerpiece of a major national campaign to indentify and preserve forgotten history, Here Is Where is acclaimed historian Andrew Carroll’s fascinating journey of discovery in which he travels to each of America’s 50 states and explores locations where remarkable individuals once lived or where the incredible or momentous occurred.

"Dr. Livingstone, I presume?" So goes the signature introduction of New York Herald star journalist Henry Morton Stanley to renowned explorer Dr. David Livingstone, who had been missing for six years in the wilds of Africa. Into Africa ushers us into the meeting of these remarkable men. In 1866, when Livingstone journeyed into the heart of the African continent in search of the Nile's source, the land was rough, unknown to Europeans, and inhabited by man-eating tribes.

Based on nearly 10 years of research in Italy, France, and Israel, including interviews with Gino Bartali's family, former teammates, a Holocaust survivor Bartali saved, and many others, Road to Valor is the first book ever written about the Italian cycling legend in English and the only book written in any language to fully explore the scope of Bartali's wartime work. An epic tale of courage, comeback, and redemption, it is the untold story of one of the greatest athletes of the 20th century.

A remarkable true story of adventure, betrayal, and survival set in one of the world's most inhospitable places. In 1906, from atop a snow-swept hill in the ice fields northwest of Greenland, hundreds of miles from another human being, Commander Robert E. Peary spotted a line of mysterious peaks looming in the distance. He called this unexplored realm "Crocker Land". Scientists and explorers agreed that the world-famous explorer had discovered a new continent rising from the frozen Arctic Ocean.

At age 24 Winston Churchill was utterly convinced it was his destiny to become prime minister of England one day, despite the fact he had just lost his first election campaign for Parliament. He believed that to achieve his goal, he had to do something spectacular on the battlefield. Despite deliberately putting himself in extreme danger as a British army officer in colonial wars in India and Sudan and as a journalist covering a Cuban uprising against the Spanish, glory and fame had eluded him.

At the onset of World War II, Williams formed Elephant Company and was instrumental in defeating the Japanese in Burma and saving refugees, including on his own "Hannibal Trek." Billy Williams became a media sensation during the war, telling reporters that the elephants did more for him than he was ever able to do for them, but his story has since been forgotten.

A leading dog-blogger offers a tour of military working dogs' extraordinary training, heroic accomplishments, and the lasting impacts they have on those who work with them. Maria Goodavage here tells heartwarming stories of modern soldier dogs and the amazing bonds that develop between them and their handlers. Beyond tales of training, operations, retirement, and adoption into the families of fallen soldiers, Goodavage talks to leading dog-cognition experts about why dogs like nothing more than to be on a mission with a handler they trust.

In the first week of October, 1918, six hundred men attacked into Europe's forbidding Argonne Forest. Against all odds, they surged through enemy lines—alone. They were soon surrounded and besieged. As they ran out of ammunition, water, and food, the doughboys withstood constant bombardment and relentless enemy assaults. Seven days later, only 194 soldiers from the original unit walked out of the forest. The stand of the US Army's "Lost Battalion" remains an unprecedented display of heroism under fire.

An instant hit in the UK, this is the true account of a German shepherd who was adopted by the Royal Air Force during World War II, joined in flight missions, and survived everything from crash-landings to parachute bailouts-ultimately saving the life of his owner and dearest friend. In the winter of 1939 in the cold snow of no-man's-land, two loners met and began an extraordinary journey that would turn them into lifelong friends.