Blackwater is a thriller novelette by Conn Iggulden. It was written as part of the Quick Reads initiative of the 2006 World Book Day. Blackwater is described as a dark, psychological thriller, signalling a change in genre from an author used to writing historical fiction.On the forum of his website, Conn described the idea behind the book: It was also translated into Welsh for the Quick Reads Initiative under the title Dŵr Dwfn.