Chain of Evidence

Inspector Hal Challis, head of Australia's Mornington Peninsula Crime Investigation Unit, has been summoned to his boyhood home, Mawson's Bluff in the Australian Outback. His father is dying.
Sergeant Ellen Destry is left to head an investigation into a ring of pedophiles. A little girl has been abducted from the fairgrounds of the annual Waterloo Show. Her mother failed to report her absence until the next day. After twenty-four hours, hope is slim that the police will find the child before it is too late.
Challis has his own investigation to conduct. When a new grave is dug in the town graveyard, an extra corpse is found. It turns out to be his sister's husband, who has been missing but was presumed to be off on an excursion of his own. Solving this long unsuspected crime is a challenge that puts Challis in peril of his life.