Call of the Shadow Rift. Book of the Doomshroud, #1

A throne held together by will. A kingdom tearing itself apart. And a queen running out of time. Two years have passed since Kaeri Venador won the crown of ahara and the right to rule Montagn-but ruling is proving far more dangerous than she expected. Montagn is brittle with resentment. Powerful Houses challenge Kaeri's authority at every turn, old alliances strain, and the hard choices that secured her throne now threaten to tear it apart.
When events force Kaeri beyond the protection of her House and crown, she is forced to rely on the unlikeliest of allies - a shy soldier, a broken servant, the dangerous prince of night, and the enigmatic Nightbird, who unsettles Kaeri as much as she intrigues her. People she never chose. People who, against everything Kaeri believes, begin to feel like home. But the most dangerous threats might be the ones no one believes in.
While Montagn's attention remains fixed on politics and power, rumours from the rebel port of Avarai go unheeded. Stories of monsters in the night. But what if they're not just stories? Book of the Doomshroud is an epic fantasy series for readers who love political intrigue, a fierce found family, and a morally grey queen who trusts no one.