Ember and the Lantern Oath

Every firefly of the Emberlight Clan glows green. Ember glows gold.
On the night of her Lantern Oath, the rite that is supposed to confirm her place in clan life, Ember lights up the wrong colour in front of everyone. She is quietly set aside as an outsider whose glow might be bad luck, so she learns to keep it dim.
Which is exactly the wrong habit to have when a grey blight begins creeping along Willow Creek, smothering firefly light clan by clan, and Ember is the only one who notices. Nobody believes her. The Emberlight and Duskwing clans have been feuding far too long to compare notes.
To save the creek, Ember has to do three things she has never done: convince the elders the blight is real, get three rival clans to stand together, and stop hiding the one light strong enough to push the dark back.
Ember and the Lantern Oath opens The Glow Clans, a gentle, big-hearted fantasy series about belonging, stubborn friendship, and the thing about you that everyone else calls a mistake. Perfect for fans of Wings of Fire, The Tale of Despereaux, and Warriors.
She was told her glow was a mistake. The dark disagrees.