Trailin'! by Max Brand

All that day, in a silence broken only by murmurs and side glances, Anthony and Sally Fortune moved about the old house from window to window, and from crack to crack, keeping a steady eye on the commanding rocks above. In one of those murmurs they made their resolution. When night came they would rush the rocks, storm them from the front, and take their chance with what might follow. But the night promised to give but little shelter to their stalking.

For in the late afternoon a broad moon was already climbing up from the east; the sky was cloudless; there was a threat of keen, revealing moonshine for the night. Only desperation could make them attempt to storm the rock, but by the next morning, at the latest, reinforcements were sure to come, and then their fight would be utterly hopeless.