may have heard of its coming ashore here last summer."
"I think I did," said I with a faint smile. The thing had poisoned the air for miles around.
"But," I continued, "suppose it comes in the night?"
He laughed.
"There I am lucky. Every night this month, and every day, too, the current of the loop runs inland so far that even a porpoise would strand for at least twelve hours. Longer than that I have not experimented with, but I know that the shore trend of the loop runs across a long spur of the submerged volcanic mountain, and that anything heavier than a porpoise would scrape the bottom and be carried so slowly that at least twelve hours must elapse before the carcass could float again into deep water. There are chances of its stranding indefinitely, too, but I don't care to take those chances. That is why I have stationed you here, Dick, my boy."
He glanced again at the water, smiling to himself.
"There is another question I want to ask," I said, "if you don't mind."
"Of course not!" he said warmly.
"What are you digging for?"
"Why, simply for exercise. The doctor told me I was killing myself with my sedentary
