Weeks, months, years passed away, without any circumstance, lifting the corner of the mysterious veil which enveloped these sinister events, and, notwithstanding the most active and persevering researches, nothing could be learnt of the fate of Rafaël, his mother, and Nô Eusebio. THE END OF THE PROLOGUE. PART I. THE LOYAL HEART. CHAPTER I. THE PRAIRIE. To the westward of the United States extends, many hundred miles beyond the Mississippi, an immense territory, unknown up to this day, composed of uncultivated lands, on which stands neither the log house of the white man nor the hatto of the Indian. This vast desert, intersected by dark forests, with mysterious paths traced by the steps of wild beasts, and by verdant prairies with high and tufted herbage that undulates with the slightest breeze, is watered by powerful streams, of which the principal are the great Canadian river, the Arkansas, and the Red River. Over these plains, endowed with so rich a vegetation, wander innumerable troops of wild horses, buffaloes, elks, bighorns, and those thousands of animals which the civilization of the other parts of America is every day driving back, and which regain their primitive liberty in these regions. On this account, the most powerful Indian tribes have established their hunting grounds in this country. The Delawares, the Creeks, and the Osages, prowl along the frontiers of the desert up to the environs of the establishments of the Americans, with whom some few bonds of civilization are beginning to unite them, engaged in constant conflict with the hordes of Pawnees, Blackfeet, Assiniboins, and Comanches, indomitable races, nomads of the prairies, or inhabitants of the mountains, who permeate in all directions this desert, the proprietorship of which none of them venture to assert, but which they appear to agree to devastate, uniting in vast numbers for hunting parties, as if for the purpose of making war. In fact, the enemies travellers are exposed to encounter in these deserts are of all kinds; without mentioning in this place wild beasts, there are hunters, trappers, and partisans, who are not less formidable to the Indians than to their fellow countrymen. The prairie, therefore, the sinister theatre of incessant and terrible contests, is nothing in reality but a vast charnel house, in which perish obscurely, every year, in a merciless war of ambuscades, tens of thousands of intrepid men.