Safely back in Kathmandu and about to fly out to London, I thought I'd closed the books on the Nepal leg of our search.

But, during my weeks in the mountains, I’d established a local network of amazing people who’d promised to notify me if any really interesting leads came up. And so it was that, sitting in my hotel room the day before I was due to leave the country, my phone pinged and a quite shocking photo popped up, taken just a few days previously.

It seemed the yeti wasn’t quite done with me yet.