Four years ago, three climbers died on Dhauli Shikhar. Dr Kuhu Garbyal was the camp doctor, and her own handwriting is the last record of what was said on the radio that afternoon. Now the sponsor wants her back. A memorial expedition, a new permit, eleven new ropes on the same headwall. The guide who lost his brother on that mountain has signed on. The leader is the same man. Nine days. Twelve people. One piece of old rope with three clean scores in it, and a camp where the satellite link keeps failing at exactly the wrong moment. When the first body is found, everyone says it was the altitude. Kuhu is a doctor. She knows what altitude looks like, and this is not it. Up here, nobody can leave, nobody can call for help, and the one person who knows what really happened is sleeping in the next tent. How far will you climb to finally hear the truth?