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 Marcus Nash & Rory Elrick, aired on the BBC from January 2009. Plot summary Fletcher Moon (often called "Half-Moon" due to his short stature) is a natural born investigator. Knowing this, April, a girl from his school comes to him for help in finding a lock of hair that she believes to have been stolen. Fletcher agrees to help her and starts off by investigating all suspects which eventually gets him threatened by a thirteen-year-old named Red Sharkey. Fletcher is a graduate from the Bernsteins Academy, so he is a "certified" detective. While Fletcher is investigating the stolen lock of hair he has a hurling stick thrown at him and is seriously injured. Fletcher holds Red as a prime suspect as the hurling stick had 'Red' embossed on it and comes to the conclusion that it was Red who attacked him. Fletcher then goes to visit April’s cousin May to photograph this newfound evidence but ends up at the wrong house where he catches sight of somebody setting fire to May’s lucky dancing costume. He passes out in the yard due to the anesthetic from the hospital and later awakens to find a torch in his hand and all evidence for the arson pointing to him. Following an interrogation by the police, Fletcher is rescued by Red Sharkey. Red claims he was framed for the hurl assault. Half-Moon and Red team up to solve the chain of mysteries within 24 hours. Following a suspicious story to April's house, the boy detectives discover the truth behind Les Jeunes Etudiantes, the girls club, their true goal being to get rid of all the boys ruining their education. Three recent expulsions can be attributed to these girls, and the boys feel they need to be stopped. Unfortunately, they are found out, and the girls manage to imprison the boys in the cellar. They are, however, saved by May, April's cousin. Fletcher and Red previously heard the girls practicing the lines that they planned to use to accuse Red's brother, Herod of assault. Red is able to send