Akihiro Oishi

In 2009 Japanese alpinist Kei Taniguchi became the first woman to receive a Piolet d’Or for her first ascent of the Southeast Face of Kamet (7756m), with Kazuya Hiraide. During the final years of her life, Taniguchi continued to explore challenging new routes, while hinting at a mysterious personal quest. Piecing together diary entries and interviewing family and friends, her biographer Akihiro Oishi tries to see inside what Taniguchi called “the Pandora’s box.”