Vanished

Four passports are found of girls who vanished in Australia. The girl who found them has disappeared too. Who are these girls? Where have they gone?A diary and search in Australia and across the world give tiny glimpses and fragments, but their stories remain elusive. The police search, friends and families search and grieve in alternate measure, but five girls remain gone, their fate unknown. Anne is wracked by guilt at her failure to save her friend, Susan, who vanished one night soon after her release from jail.
The evidence suggests she has returned to the place where she and her lover parted, she chose him and the crocodiles over life. She was in advanced pregnancy with twins and so three people are gone. Anne has her friend's story, her voice on a tape is the last fragment left to her of a vanished existence. She must tell this story so that the world can know of this lovely brave girl who seems forever lost.
And the families of the other four girls want their stories told too. She has the man's diary, which tells parts, but there is much that makes no sense. It reveals another shadowy girl who may have gone too. She travels to the places from where they have come and were last seen in search of answers. She faithfully records each story, five or even six lost girls, each girl gone, nobody knows where.
As she searches patterns emerge which help to explain the why and some of the how, but not where they are now. Almost certainly some are dead, but could some still survive.. She is determined not to surrender all hope that at least one or two may yet be found alive. After a year nothing has been found. She must put it behind her and try to get on with her own life, but guilt and hope keep driving her on, searching still.