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Patricia Kennealy
Patricia Kennealy-Morrison was an American author and journalist. Her published works include rock criticism, a memoir, and two series of science fiction/fantasy and murder mystery novels. Her books are evenly divided between the series The Keltiad and The Rock&Roll Murders: The Rennie Stride Mysteries.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

The Silver Branch
1989
ISBN 9780451162779
The Hawk's Grey Feather
1992
ISBN 9780586212493