I read this book many years ago, whilst still at school and I still love it.
Tia and Rabbit are considered odd by their primitive post-apocolyptic community. They share the same dreams of a far more civilised community and wish to escape their home, where Tia is considered a blasphemous witch. Several hundred miles away, Ashira and Varas reside, their telepathic powers recieving Tia and Rabbit's thoughts and wondering where they are. After Rabbit accidently kills the head cook, they have to run. Guided by Ashira and Varas, they must make their way to the sea and safety.
HM Hoover has created a wonderfully absorbing tale, full of danger and wonder. She paints the picture of a world completely changed by ecological disaster and presents it in a believable and engaging way. The characters seize your attention and keep hold. The adults are as well drawn as the children and rouse either your sympathy or hatred. I finally found a copy of this tale and would love it to be re-released for this generation of children.