Taken at the Flood is a work of detective fiction by British writer Agatha Christie, first published in the US by Dodd, Mead and Company in March 1948 under the title of There is a Tide. .. and in the UK by the Collins Crime Club in the November of the same year under Christie's original title. The US edition retailed at $2.50 and the UK edition at eight shillings and sixpence (8/6). It features her famous Belgian detective, Hercule Poirot, and is set in 1946.

Hercule Poirot is a fictional Belgian detective created by British writer Agatha Christie. Poirot is one of Christie's most famous and long-running characters, appearing in 33 novels, two plays, and 51 short stories published between 1920 and 1975.