obscurity

The night was considerably clearer than anybody on board her desired when the schooner Ventura headed for the land. It rose in places, black and sharp against the velvety indigo, over her dipping bow, though most of the low littoral was wrapped in obscurity.

The departure was not unduly prolonged.[…]Within the door Mrs. Spoker hastily imparted to Mrs. Love a few final sentiments[…]; a deep, guttural instigation to the horse; and the wheels of the waggonette crunched heavily away into obscurity.