When it’s ready, I take it down to the stream and fill it with water before bringing it back.
“What the hell are you going to do with that?” Luca asks, genuinely interested.
“Fill it with rocks,” I murmur.
“What?” Graham asks, baffled. But I don’t answer, asking Luca to hold the pocket steady and using another pair of sticks to lift the round rocks that have been heating in the embers, dropping them one by one into the pocket full of water.
The boys start to realize what’s happening almost instantly. “There’s no way that’s actually going to work,” Perry murmurs, leaning forward with interest.
“It will,” I reply, glancing up at the sky, which is starting to grow dark. All of this took a lot longer than I thought.
I keep rotating the stones, removing cooled ones and replacing them wit
