By the time he had walked 400 kilometers in the wet and humid Indian monsoon season, the soles of Vaibhav Walia’s feet were covered in giant blisters. His colleague, Lhingkim Haokip, had been diagnosed with a minor fracture in her leg. Walking alongside them, I experienced something I’d never previously heard of — blisters developing inside my blisters. Every step was beyond agony.By the time he had walked 400 kilometers in the wet and humid Indian monsoon season, the soles of Vaibhav Walia’s feet were covered in giant blisters. His colleague, Lhingkim Haokip, had been diagnosed with a minor fracture in her leg. Walking alongside them, I experienced something I’d never previously heard of — blisters developing inside my blisters. Every step was beyond agony.