Leila, Book IV by Edward Bulwer-lytton

The calmer contemplations and more holy anxieties of Leila were, at length, broken in upon by intelligence, the fearful interest of which absorbed the whole mind and care of every inhabitant of the castle. Boabdil el Chico had taken the field, at the head of a numerous army. Rapidly scouring the country, he had descended, one after one, upon the principal fortresses, which Ferdinand had left, strongly garrisoned, in the immediate neighbourhood. His success was as immediate as it was signal; the terror of his arms began, once more to spread far and wide; every day swelled his ranks with new recruits; and from the snow-clad summits of the Sierra Nevada poured down, in wild hordes, the fierce mountain race, who, accustomed to eternal winter, made a strange contrast, in their rugged appearance and shaggy clothing, to the glittering and civilised soldiery of Granada.

Moorish towns, which had submitted to Ferdinand, broke from their allegiance, and sent their ardent youth and experienced veterans to the standard of the Keys and Crescent. To add to the sudden panic of the Spaniards, it went forth that a formidable magician, who seemed inspired rather with the fury of a demon than the valour of a man, had made an abrupt appearance in the ranks of the Moslems.