'On the contrary – 'Tis the keyhole through which the entire riddle will be unlocked, ' Eliza returned, the t's and k's making her veil ripple gorgeously. But she was not as confident as she sounded, and so, at the risk of being obvious, she allowed her gaze to wander, in what she hoped would be an innocent-seeming way, around the crescent of opera-boxes until she found the one where the comte d'Avaux was seated along with (among other Amsterdammers who had recently gone on shopping sprees in Paris) Mr. Sluys the traitorous lead-hoarder.