In this installment Aeryn tries to track down the cause of the ailment and find a cure for her and Crichton's son. Meanwhile Crichton and Chiana try to learn more about the hit man that's been running around since episode one of the series that's trying to kill said son. All in all it was an interesting read with a surprise or two thrown in.
I have read the previous 3 volumes before volume 4. The series definitely captures the personality of characters. I wish that someone would continue the series in book form in order to go into more depth with story and character development. I love the concept of the characters and the world they live in. I can't seem to get enough of Farscape. I wish there were more stories/books out there about the Farscape World. Sadly, there is very little and very little quality in what's available. This is unfortuantely the best anyone is doing at this time.