It means that he can be caught anytime.
The novel confirms the dystopia genre showing the society that is an illusion of a perfect utopian world and citizens who have a fear of the outside world. The author's style of writing is effective, emotive, imaginative and fast-moving. In my opinion, the author wants us to understand what makes life meaningful and important. She wants to show us how emotional, sensitive we are and how painful disease - love can be.
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