The ceiling of the cave was full of a beautiful, green, soft moss and “Lord of the Rings” style blades of pure, crystal-clear, perfectly smooth ice. “Wish I had a green gel…” I said. And that’s when it happened; the flash of synergistic genius fired. “What about one of your fruit roll-ups?” Ben said. I looked at him for a moment and thought hey-great idea. I ran out and rummaged through my stuff sacks looking for the food bag. The second roll-up opened was what I was after: a sheet of blue-green fruit pressed into a thin, pliable sheet. The cold made it a little brittle and I gently peeled it from the plastic and ran back into the cave, molding it like a cap on the head of the flash.