Read it through once

... Three nights has the same thing happened--violent all day then quiet from moonrise to sunrise. I wish I could get some clue to the cause. It would almost seem as if there was some influence which came and went. Happy thought! We shall to-night play sane wits against mad ones. He escaped before without our help; to-night he shall escape with it. We shall give him a chance, and have the men ready to follow in case they are required....