The Fortress of Glass
(Crown of the Isles, Book 1)
by David Drake

Description:
Prince Garric, heir to the throne of Isles, his consort Liane, his sister Sharina, her herculean sweetheart Cashel, his sister Ilna, with her adopted child Merota and piratical Chalcus, her beloved, all journey filled with soldiers and diplomats to the small kingdoms of the Isles to confirm the succession of Garric and to subdue, if necessary, any local rulers too fond of their own kingship to pledge fealty to Garric. All this is being done in a time when the powers of magic in the Isles have flooded to a thousand-year peak, and even local magicians can perform powerful spells normally beyond their control. Fantastic forces from all angles try to keep them apart and unable to continue the reunification of the Isles. So separately and together, they must fight their way back to the same time and place to combat the mysterious and supernatural menace of The Green Woman in her Fortress of Glass.