The Heights Mysterious Book Report No. 483 by John Dwaine McKenna The Heights, (Atria, PB, $17.00, 416 pages, ISBN 978-1-9821-7412-5), by internationally acclaimed and best-selling British author Louise Candlish, puts the reader right into the mind of a controlling, obsessed, and grieving woman named Ellen Saint . . . whose only son, nineteen year-old Lucas, was killed in an automobile accident.  The car was being driven by his best