Cryptogram from Frankenstein; or, the modern prometheus, chapter 14

"A few days after, the Turk entered his daughter's apartment and told her hastily that he had reason to believe that his residence at Leghorn had been divulged and that he should speedily be delivered up to the French government; he had consequently hired a vessel to convey him to Constantinople, for which city he should sail in a few hours. He intended to leave his daughter under the care of a confidential servant, to follow at her leisure with the greater part of his property, which had not yet arrived at Leghorn.

The sentence you are solving goes here.

"She arrived in safety at a town about twenty leagues from the cottage of De Lacey, when her attendant fell dangerously ill. Safie nursed her with the most devoted affection, but the poor girl died, and the Arabian was left alone, unacquainted with the language of the country and utterly ignorant of the customs of the world. She fell, however, into good hands. The Italian had mentioned the name of the spot for which they were bound, and after her death the woman of the house in which they had lived took care that Safie should arrive in safety at the cottage of her lover."