The Heart of Stars

Book three of the Rhiannon Rides series by Kate Forsyth. There are two main plot threads in this book - Isabeau and Cloudshadow's quest back through time via the Heart of Stars to rescue Donncan and Thunderlily who had been captured as part of a plan to raise Brann the Raven from the dead plus the attempts by Rhiaanon and her friends to rescue Olwynne, Owein and Roden kidnapped by Lord Malvern to be used as sacrifices to also raise the dead. This story of intrigue, revenge, guilt, regret and love evolves as the characters attempt to defeat the evil that is trying to destroy Eileanan and its rulers.A satisfying conclusion to a an exciting fantasy trilogy.