Half Moon Investigations is a novel by the Irish author Eoin Colfer. It was first published in United States in March 2006 and was released in the UK and Ireland on 1 June 2006. The paperback edition was released in the UK on 5 July 2007. It has also been adapted as a television series starring Sebastian Charles & Rory Elrick, which aired on the BBC from January 2009. Source: Wikipedia (en)