This is the tale of Mark Horrell's not-so-nearly ascent of Gasherbrum in Pakistan, of how one man's boredom and frustration was conquered by a gutsy combination of exhaustion, cowardice, and sheer mountaineering incompetence. He made not one, not two, but three intrepid assaults, some of which got quite a distance beyond Base Camp, and overcame many perilous circumstances along the way. The mountaineer Joe Simpson famously crawled for three days with a broken leg, but did he ever have to read Angels and Demons by Dan Brown while waiting for a weather window? But that's enough about Mark's attempt; there were some talented climbers on the mountain as well, and this story is also about them. How did they get on? Heroes, villains, oddballs and madmen - 8,000m peaks attract them all, and drama, intrigue and cock-ups aplenty were inevitable.

In April 2014 Mark Horrell went on a mountaineering expedition to Nepal, hoping to climb Lhotse, the fourth-highest mountain in the world, which shares a base camp and climbing route with Mount Everest. He dreamed of following in the footsteps of Tenzing Norgay and Edmund Hillary, by climbing through the infamous ice maze of the Khumbu Icefall, and he yearned to sleep in the grand amphitheatre of Everest Base Camp, surrounded by towering peaks. He was also intrigued by the media publicity surrounding commercial expeditions to Everest. He wanted to discover for himself whether it had become the circus that everybody described. But when a devastating avalanche swept across the Khumbu Icefall, he got more than he bargained for. Suddenly he found himself witnessing the greatest natural disaster Everest had ever seen. And that was just the start. Everest Sherpas came out in protest, issuing a list of demands to the Government of Nepal. What happened next left his team shocked, bewildered and fearing for their safety.

In April 2012 Mark Horrell travelled to Tibet hoping to become, if not the first person to climb Mount Everest, at least the first Karl Pilkington lookalike to do so. He joined a mountaineering expedition which included an Australian sexagenarian, two Brits whose idea of hydration meant a box of red wine, and a New Zealander who enjoyed reminding his teammates of the perils of altitude sickness and the number of ways they might die on summit day. The media often write about Mount Everest deaths and how easy the world's highest mountain has become to climb, but how accurately does this reflect reality? The Chomolungma Diaries is a true story of ordinary people climbing Mount Everest with a commercial expedition, and preparing for the biggest day of their lives. Imagine your life clipped into a narrow line of cord five miles above the earth, on the world's most terrifying ridge walk. This book will bring you just a little bit closer to that experience.

As he teetered on a narrow rock ledge a yak's bellow short of the stratosphere, with a rubber mask strapped to his face, a pair of mittens the size of a sealion's flippers, and a drop of two kilometres below him, it's fair to say Mark Horrell wasn't entirely happy with the situation he found himself in. He had been an ordinary hiker who had only read books about mountaineering. When he signed up for an organised trek in Nepal with a group of elderly ladies, little did he know that ten years later he would be attempting to climb the world's highest mountain. But as he travelled across the Himalayas, Andes, Alps and East Africa, following in the footsteps of the pioneers, he dreamed up a seven-point plan to gain the skills and experience which could turn a wild idea into reality. Funny, incisive and heartfelt, his journey provides a refreshingly honest portrait of the joys and torments of a modern-day Everest climber.