"They're sick," Daniel said. "Doesn't your Book tell you how to care for them?"

"I'm a merchant, not a chicken farmer," the man said. "I'd hoped my son would get the Book for chicken farming, but he didn't. I don't think the birds are going to live much longer."

"I'm a chicken farmer back home," Daniel said. "These birds look very different from mine, but I think they need some gravel."

"Gravel?" the man said. "Why would they need gravel?"

"I have no ...