Read it through once

Robinson knew that these formidable people were lurking somewhere, in some remote corner of the hideous regions just described, and he and his unarmed little party started on a tedious and perilous hunt for them. At last, “there, under the shadows of the Frenchman's Cap, whose grim cone rose five thousand feet in the uninhabited westward interior,” they were found. It was a serious moment. Robinson himself believed, for once, that his mission, successful until now, was to end here in failure, and that his own death-hour had struck.