The Hollow Crown: Book Two

Five years have passed since the Hollow Crown was destroyed.
Peace has returned to Nocthyr, and Lyra has become a legendary guardian whose name is known across the kingdoms. But strange signs begin to appear: ancient ruins awaken, stars vanish from the night sky, and people across the realm hear whispers from forgotten gods.
When a mysterious relic known as the Ashen Crown is unearthed in the frozen north, an exiled order called The Veil of Cinders begins resurrecting the world's most feared rulers. Their leader, the enigmatic King Malachar, believes the Hollow King was only one of the ancient beings imprisoned beneath the world-and that six more still sleep.
To stop him, Lyra and Kael must travel beyond Nocthyr into cursed kingdoms, haunted seas, crystal deserts, and cities built on the backs of mountains. Along the way, they will gain new allies, face impossible betrayals, and discover that the greatest threat may come from someone they trust.
In the end, Lyra must choose between preserving the peace she fought so hard to win... or risking everything to stop an ancient evil before the world is consumed.