Pete

The twelve year old Andy returns to Tasmania after a holiday in Australia.
He met some surprising people in Canberra, but the most surprising person of all was the ten year old Charlie. Charlie and his mother are escaping from the Charlie's abusive, very powerful, but not very sane, father.
Andy and Charlie are as identical as identical twins.

Charlie's mother finds a job in a remote part of the island state, not dreaming that they are putting Andy's life into deadly danger.