Oh,
her... Yeah, nah, that's just Marshmellow. She's been in the game for ages by now! I think she was even in the area since it was introduced at that. Also, it seems the only new "real" character in that area is that adult toddler (Christ, that's an oxymoron...) that keeps spawning into various rooms, following you around and hitting you with her squeaktoy hammer. And of course she's almost entirely unavoidable and can one-hit-kill you...
...remind me again, why do people actually like this shitty game? Unkillable
and unavoidable enemies
with fucking instant death attacks have been a provably stupid and universally hated concept for fucking
decades by now...
-Mal