Yes, it was the symbol of his demon. The transformation started with the mark and spread. But once again, Heat wanted to avoid the details, especially since this looked like the sort of kid that might get too nosy and ask things he shouldn't. A lot of people were like that here, though in their defense there wasn't much else to do here at times aside from talking.

Especially when one didn't have their own meal to eat, like now. "It marks me as having certain abilities," he decided on finally. "And if it glows brighter than that, you're in trouble." If it spread, in other words, glowing lines like webbing moving outward from the mark. But yeah... details.

His other hand began tapping his leg, light and without rhythm. There was too much time left until nightfall.