The marquis, without waiting for orders, resolved to open the campaign by penetrating into the Alpujarras with the small force he had under his command. But a body of some four hundred troops, which he had caused to occupy the pass of Ravaha, was cut off by the enemy, and the haughty chieftain reluctantly obeyed the orders of Don John to abandon his design. Aben-Humeya's success encouraged him to attack the marquis in his new quarters at Verja. It was a well-concerted enterprise, but unfortunately, before the time arrived for its execution, it was betrayed by a prisoner to the Spanish commander. It consequently failed. Aben-Humeya penetrated into the heart of the town, where he found himself in the midst of an ambuscade, and with difficulty, after a heavy loss, effected his retreat. But if the victory remained with the Spaniards, the fruits of it fell to the Moriscoes. The spirit shown by the Moslem prince gave new life to his countrymen, and more than counterbalanced the effects of his defeat. The rich and populous country of the Rio de Almanzora rose in arms. The marquis of Los Velez found it expedient to abandon his present position, and to transfer his quarters to Adra, a seaport on the Mediterranean, which would afford him greater facilities for receiving reinforcements and supplies.[166] The spirit of insurrection now spread rapidly over other parts of the Alpujarras, and especially along the sierra of Bentomiz, which stretches from the neighbourhood of Alhama towards the south. Here the mountaineers, who had hitherto taken no part in the troubles of the country, ranging themselves under the crimson banner of Aben-Humeya, broke forth into open rebellion. The inhabitants of Velez and of the more important city of Malaga were filled with consternation, trembling lest the enemy should descend on them from the mountains and deluge their streets with blood. They hastily mustered the militia of the country, and made preparations for their defence.