"They had nothing to eat but Ryan's food, and they ate little of that because it was so dry, but it seemed to sustain them. Their greatest worry was water. Though they drank only a little each day, Westerly's flask was empty and the bottle in Cally's pack now only half-full. "I wish I was a camel," Cally said. Westerly said, "I wouldn't want to spend this much time with a girl who looked like a camel." She tried to laugh, but her tongue felt thick in her mouth, and her mind full of hopelessness. "When this is gone, we shall just die of thirst." "We'll be out of the dunes by then," Westerly said encouragingly. But he knew that the mountains, though nearer now on the hazy horizon, were far more than a day's walk away."