It's been the forty-third day of my imprisonment when the mad scientist returned to the ruins of her lab. No, ruins wasn't the right word. It implied the existence of some remains that you can rebuild.
I ate the lab together with the stone in which it was cut. I ate every specimen and every living creature inside the barrier. I ate every plant, and I began to eat the ground, starting with a burrow in which I spent my nights. But it was daytime when she came, and I was busy trying to break through the barrier.
Her appearance was accompanied by a flash of light and a strange hissing sound, like a rapidly escaping steam, but she herself was as ordinary as any human at a first glance.
Looks like a lose-lose situation.