AustLit

'Winter grips the Vales as the battles to rid the lands of the Tallon invaders build to a bloody climax. Geth, Ceannasai of a Ranger band, has already lost his closest friend Nyar to their swords, and is furious when Nyar’s sister Kyth appears on the eve of the final battle. 

'She should be safe in the Crags, where Geth promised Nyar she would remain, but Geth has something Kyth wants, something he has denied her, and when he denies her a second time, she refuses to leave.

'To add to the dangers, Kyth has a glass-heart with her, a lesser being with slurred speech and strangely hooded eyes. Glass-hearts are mysterious but there is one thing Geth is absolutely certain of: its presence at the battle-front imperils them all.'

Source: Publisher's blurb.