Solemn.

Mark Twain's The Adventures of Huckleberry Finn was published on this day in 1885.

We catched fish and talked, and we took a swim now and then to keep off sleepiness. It was kind of solemn, drifting down the big, still river, laying on our backs looking up at the stars, and we didn't ever feel like talking loud, and it warn't often that we laughed—only a little kind of a low chuckle. We had mighty good weather as a general thing, and nothing ever happened to us at all—that night, nor the next, nor the next.

Mark Twain, from The Adventures of Huckleberry Finn