Endless ice. Thin air. The threat of dropping into nothingness thousands of feet below. This is the climb Silvia Vasquez-Lavado braves in her page-turning, pulse-raising memoir following her journey to Mount Everest. A Latina hero in the elite macho tech world of Silicon Valley, privately, she was hanging by a thread. Deep in the throes of alcoholism, hiding her sexuality from her family, and repressing the abuse she’d suffered as a child, she started...