Australian writer Thompson's promising beginning dwindles into contrivance as Lyn Sutton, now in her 20s, finally tracks down her dad--last seen when she was six and he was arrested for robbery and murder. Remarried, with a second family and a plumbing business in New South Wales, dad Roger is hardly eager to acknowledge Lyn, but soon this reconciliation takes second place as she responds to a note--misdelivered--desperately asking for help to avert a murder! The purported sender, Vi--living with her charming husband; wheelchair-bound nephew, Peter; and cantankerous, independent, alcoholic in-law, the aging Edith--seems, to Lyn, to be quite safe, until the brakes slip on Edith's car, nearly leveling her. Accidental? Meanwhile, a dashing young man on a motorcycle is following Lyn; Edith, perhaps despondent, ingests something fatal; and Peter's tutor casts new light on the rock-climbing slip that crippled the youngster--or did it? There's a tortuous caving expedition before Lyn understands exactly who in Vi's house is really being menaced--and how it ties in (all too neatly) with her dad's crime of years ago. A Harlequin-esque debut novel, with unsurprising twists, hints at romance, and a Happy Ending, but redeemed by the edgy, wary, believable relationship between Lyn and her father's second family.