A Still, Small Voice

On her eighteenth birthday, Hono is to be crowned Queen of the City of Winter but the Dragon disrupts the coronation ceremony with a peculiar cry:
Listen. Listen. Listen!
There is one more task to free the City of Winter of all enchantment—and Hono must listen carefully for it.

A Still, Small Voice is the fourth in the North series
Book 1: When Winds Blow cold
Book 2: The Flame of the North
Book 3: Beneath the Rumbling Earth
Book 4: A Still, Small Voice