I have to say, I'm not entirely sold on Hall's novel. This indepth narrative of one woman's determination to fight back against the injustices of an oppressive government is certainly thought provking. The imagery of nature fighting back again containment is convincing - government control of human reproduction represents an attempt to control nature; whereas the women living at Carhullan are living off the land and allowing nature its rightful place in the world. Imagery found in the episode in Sister's father's garden shows how nature (i.e. the over-grown garden) is a protector, is the right path, by hiding the gun and ammunition from the Authority; her salvation, so to speak, is guarded by unadultered nature.
However, my main problem with the novel lies in it's conclusion. After the last piece of missing data it just ends. I sort of feels that Hall ran out of steam and couldn't be bothered finishing it properly. While, as a rule, I have no problem with ambiguous endings, and actually quite like puzzling over the question 'so, what happened next?', the connections were anything but seamless.
If you like nice neat bows to tie up your endings, this is not the one for you. But, if you like a thought provoking exploration of the ethical questions involved with retaliation of oppression then give it a go.