The felucca on seeing this, and apprehending danger, rigged out her tall tapering lateen sails, wing-a-wing, as it is called, one on each side. She appeared like a graceful sea-bird, and did her utmost to escape. She sailed so well that there seemed a great possibility that she might effect this. The "Imperious," like some huge bird of prey, followed in her wake, resolved on her destruction.