Lambert's gotten what he came for -- a spell to learn and an entirely unsatisfying brush-off of his concerns (well, more Strange and Childermass's concerns than his own). The Summer Maiden's enclosure is something part of him wants to snoop around more, see if there's any plants that might be useful for alchemy, but he doesn't feel like breaking off and leaving the Ringmaster alone quite yet.

Besides, he's stuck his feet in one of the ponds in the garden, and getting up seems like a lot of effort right now. So he smirks at the Ringmaster, reaching a hand up to indicate his own horns and nodding at her.

"So did you decide to keep those, or did they just stick around? You didn't have them before Portland." Though perhaps, technically, she'd had them before the Carnival? Who knows.