Cat Among the Pigeons [SEP] publisher
Cat Among the Pigeons
Cat Among the Pigeons is a work of detective fiction by Agatha Christie, first published in the UK by the Collins Crime Club on 2 November 1959, and in the US by Dodd, Mead and Company in March 1960 with a copyright date of 1959. The UK edition retailed at twelve shillings and sixpence (12/6), and the US edition at $2.95.
It features Christie's Belgian detective, Hercule Poirot, who makes a very late appearance in the final third of the novel.
Throw the cat among the pigeons
Throwing (also putting and setting) the cat among the pigeons (also amongst the pigeons) is a British idiom used to describe a disturbance caused by an undesirable person from the perspective of a group.
Another use of the term is to "cause an enormous fight or flap, usually by revealing a controversial fact or secret", or in other words: to do something suddenly or unexpectedly which leaves the people worried or angry. 
History and usage.
The phrase originally