|summary=Dalton Fly almost dies in the opening pages of this gripping story: not surprising, considering he is one of a band of food tasters in a city rent with mistrust and rivalry. And things don't get any easier as he and his friends try to rescue other victims from the devious and relentless killer.
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Life in the city of Highlions has suddenly become a lot more dangerous, even for a 'poison boy'. Dalton and Bennie were sent to a banquet to check the food, and when the book opens our hero has just recovered consciousness to find himself lying on the floor covered in Bennie's blood. His friend has been poisoned and died horribly, having literally vomited up his stomach (apologies if you're eating your tea, but this is not a book for sensitive souls), and the same poison has caused Dalton to lose his memory of the whole event. Unfortunately this is by no means the end of his troubles, as the murderer is determined to remove all witnesses.