sentences:  As the Deryni struggle to survive, the remaining members of the MacRorie family investigate the strange circumstances of their patriarch's apparent death.The plot of "The Harrowing of Gwynedd" spans seven months, from early January to early August 918.The novel begins as Father Joram MacRorie and his sister, Lady Evaine MacRorie Thuryn, discuss the recent death of their father, Camber MacRorie.