What metaphors are used in The Scarlet Pimpernel by Baroness Orczy?

The author uses the metaphor of the cat and mouse to describe the way in which Bibot traps the aristocrats attempting to leave France.

But they were nearly always caught at the barricades, Sergeant Bibot especially at the West Gate had a wonderful nose for scenting an aristo in the most perfect disguise. Then, of course, the fun began. Bibot would look at his prey as a cat looks upon the mouse, play with him, sometimes for quite a quarter of an hour, pretend to be hoodwinked by the disguise, by the wigs and other bits of theatrical make-up which hid the identity of a CI-DEVANT noble marquise or count.