After injecting reagent into what remained of the Ringmaster, Herbert had decided to take a rest. He's been napping for a while, of course, but this fog is something of an energy drain. It's a little concerning that his reagent blood isn't patching up the hole left by the ice, but it probably just needs some time. It will be fine, especially now that the Carnival appears to have exploded that Winter fae.

He just needs a moment, sitting on the ground near the injection site, neon green oozing from his shoulder and eyelids drooping.

And then he's pulled back to alertness by a sudden heat at his back, and he turns to see the Ringmaster on fire--which...that's good! He knows enough about phoenixes to get that. So that means...

"It worked!" he yelps, gleefully struggling around to stare up at the growing flame. "It worked!"