"Oi, hey!" Karlach calls out to you, from... the river?

She's waist deep in it. And there's no steam wafting up from where she's touching the water. This is the least she's been burning up lately, and she's taking her chances. Now, it might be a long shot, but...

"C'mere. Give me a hug? I got a feeling, I swear it." If all goes well, she'll finally be able to touch you without setting you on fire. She's practically vibrating, trying to wave you over to join her.

Gods she can't wait.