Lottie wasn't convinced that being herself really would be enough. Though what Persephone was asking of her was pretty much right up her alley. Keeping an eye on her. Offering her companionship. It was the same thing that she did for Melinoe without Seph having asked. It's what she'd been trying to do for Hades since he arrived here in the Underworld. So if her queen was asking her, specifically this time, to look after her daughter, it seemed to Lottie that there was more to it this time.
Then it struck her. Makaria was different. In so many ways.
First, though nobody had ever said anything, rumors were rumors and Lottie had heard. It was possible that Melinoe wasn't really Hades' daughter. But there wasn't any controversy to be had over Makaria. She was definitely a child of this marriage. Maybe Persephone was afraid of how her mother would take that. Melinoe she could hedge her bets, but Makaria? Makaria absolutely belonged to the man that had kidnapped Demeter's daughter. Would that change the way she viewed her granddaughter? Maybe.
Secondly, from the moment Melinoe made her appearance in the world, there was no doubt that she belonged to the Underworld. At least none that Lottie had seen, nor had she heard it from anyone else that lived here. Her appearance alone marked her as different, and down here? Different was the norm. Melinoe would have an easier time growing up in the Underworld than she ever would have up on the shining mountain. But Makaria was different: pretty, tiny, she'd be perfect in Olympian eyes. Was Seph worried that she wouldn't fit in in the Underworld? Because that was not going to happen.
And not just because Philotes would refuse to let it happen. Those that lived here didn't judge on appearances. People were judged on their abilities, their strength of will, their character. Lottie couldn't see how, with parents like Hades and Persephone, that Makaria wouldn't turn out wonderfully. Melinoe was already a darling and a half and utterly adored by Friendship. Her baby sister would be just the same.
So in the end, she nodded and said, “I promise, I will do my very, very best for her. And for Melinoe too.” Lottie smiled ruefully. “I'd do it for their father, but you know how he is.” Then she made a face that was her very best imitation of Hades being stoic.