And then, suddenly, Grover stopped. "Wait," he said, his voice low. "Do you hear that?"
I strained my ears, and then I heard it too - the distant sound of rushing water.
Now, I had to find a way to fix things before it was too late. I took a deep breath, steeling myself for what was to come. I would have to go back again, and try to set things right. The universe depended on it.