Presently I felt Jerry start, and then he shuffled back a little so that he was quite tight against my knees. I asked him what was the matter, and he said "Nothing." After a while, though, he said:
"Chris, I'd better tell you."
"What? Oh, what is it?" I said.
"Do you remember how the tide was when we came out?" he asked.
"Yes," I said; "on the ebb. Don't you remember the rocks at Wecanicut, with bushels of wet sea-weed hanging off?"
"Well?" Jerry said.
I did n't understand for a minute, then I whispered:
"A wave just hit my foot," said Jerry in a low voice.
The first thing that we did was a lot of quick figuring. We thought fearfully hard and remembered that Turkshead