At the tip top of the tallest trees, in a city filled with a people of light, Sleigh's sister is born different. A defect and reject, she's taken from her family and delivered to the Surface to the other lightless, fire-breathers below. But Sleigh's loved this baby since before she was born, and nothing will stand in the way of protecting her sister. Not her people's rulers threatening her life. Not slave-seeking centaurs. Not even accidentally becoming the wearer of magical wings that force her to become the lead warrior in a massive centaur war. With the help of a powerful defect man Sleigh's falling for, and the everlasting love of a sister, baby Blush will be saved.