Up on the Main Street ridge in St. Johnsbury the old buildings keep watch — the Athenaeum, the Fairbanks Museum with its planetarium dome — and the lawns between them run wide and green. TLC Tyler's lawn care mows and trims those yards, working the hill and the roads that spill off it toward Dog Mountain. Mornings up here stay cool well into July and the dew burns off late, so the day starts when the grass is ready rather than when the clock says so. Edging around walks and stone, a clearing out in spring, another after leaf-fall, and a line held all summer long. Kingdom summers are worth doing right; they are not long.