Key Selling Points  A young teen works with his estranged grandfather to try to save an orca stranded on the rocks at low tide.   This book examines complicated family dynamics and the effects of addiction.  The story is set on a remote island off the West Coast, and a pod of orcas, a species very much in the news these days, figures prominently in the storyline.   Eric Walters has written over 100 books, including Branded and Special Edward in the Orca Currents series. The a