Significados de mysterious prowler en inglés

Cannot we prevail upon them to close the windows, now that the mysterious prowler is secured?

After looking in-possiblyat me intent upon my investigation-themysterious prowler had departed again, but not as he had come.

Even in that dim light, had one looked he might have noted that the mysterious prowler wore the dress of a dervish.

Even in the dim light Brett needed no second glance to reveal to him the astounding coincidence that this mysterious prowler was Robert Hume-Frazer.