AMY McCULLOCH is the author of eight novels for children and young adults, including the internationally bestselling YA novel The Magpie Society: One for Sorrow. In September 2019, she became the youngest Canadian woman to climb Manaslu in Nepal--the world's eighth-highest mountain. She also summited the highest mountain in the Americas, Aconcagua, in -50°F temperatures and 55 mph winds, and has visited all seven continents. Breathless is her adult fiction debut.