The Secret Garden

It's very rare and you'll only find it up in the very rare air. And even if you have the lungs, stamina and perseverance to get there you'll need razor-sharp eyes, hardy hands and knees and plenty of patience to find it. So what is it? Well it's part-monster, part-mummy and depending on who you talk to it has a multitude of super powers from heart health to sex aid. On one of the strangest journeys we've ever undertaken, we go in search of, er - what to call it? The mile-high grub? No.