The glow from the pendant that Cam gives Luce is meant to allure and entice her—and it does its job. This scene plays into the idea of Cam as a seducing tempter, luring Luce with shiny things and false promises to make her feel wanted. Personally, we think Cam is trying to buy his way into Luce's heart, and he finds out quickly how well that goes over.

To bring the Cam + food = danger equation full circle, here we have him bringing Luce to a legitimately dangerous place to talk to her, a seedy bar called "Styx"…like that's not ominous. In this chapter, a few important details become clear: Cam can get in and out of Sword & Cross at will, he has disposable income to get himself and Luce to these places (hello, hired limo), and he thinks he can browbeat Luce into liking him with fancy things. On top of this, he does steamroll Luce with flirting and promises of delectable food and riches, things she chooses to accept because she likes his attention. But here Luce decides that it's all too much, and that Cam's promises can only go so far. He can't make her happy.