Rumi staunchly refuses to believe in the power of the Celine Prayer Candle; it's nothing more than a pillar of wax Zoey pasted Celine's face on. And anyway, she's never actually seen one but she's pretty sure prayer candles aren't supposed to smell like sugar cookies.
("It's part of the offering! Celine loves sugar cookies!" And Rumi can't argue because she does, how does Zoey know that)
And candles don't strengthen the Honmoon or it's Hunters! She's been connected to the Honmoon for almost as long as she can remember and has never once seen it react to a candle!
Zoey's a fanatic, though, and continues to religiously light the damn candle as "tribute." Rumi just accepts it as something she'll have to live with and looks forward to the day the candle burns down.
Celine got called away from the hanok by a pulse of pink, and three hours later she still hadn't called or come home. Rumi, naturally, starts to worry.
Five; she's run out of nails to bite.
The clock hand is creeping towards two in the morning, six hours since she left.
And with ten minutes to two, Rumi caves.
Furtively checking that Mira's asleep, she creeps into Zoey's empty room (she’s not home, family visit or something), finds the candle, and lights it.
She doesn't do anything weird; she certainly isn't going to pray to it. But...she does think about Celine as the watches the flame waver and dance to its own soundless music. About how she was scared for her, about how she wished she was skilled enough to come with her, about how much she...loves her.
Half an hour later she hears the door open, and flies into Celine's embrace.
“It was a bad one,” Celine says heavily over a cup of tea as Rumi helps patch her up. “I…they came close.”
Rumi shivers at what lurks beneath her words. But harrowing as that is, it’s what she says next that causes her hands to shake.
“Then…I’m not sure what happened, but the Honmoon seemed…stronger, all of a sudden. And I was able to keep going.”
“When did this happen?” Rumi asks, breathless.
“Hmm…about half an hour before I got back.”
Rumi becomes a very devout believer in candles after that.