Half Moon Investigations

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This article is about the novel. For the TV series, see Half Moon Investigations (TV series).
Half Moon Investigations
First edition cover
Author Eoin Colfer
Cover artist Art done by Mark Riedy, Designed by Ellice M. Lee
Country United Kingdom (first edition)
Language English
Genre Mystery novel
Publisher Miramax Books
Publication date
March 2006
Media type Print (Hardback & Paperback)
Pages 290 pp
ISBN 0-7862-9362-4 (first edition, hardback)
OCLC 80910252

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[edit]

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 holds Red as a prime suspect due to his family's criminal reputation. Fletcher then looks up the Sharkey family’s criminal records by hacking police files, leading him to discover a series of unsolved crimes that have occurred in his county. He hears something outside at night and when he goes to check it out, he is assaulted by a hurling stick and knocked unconscious. Upon awakening in hospital, he discovers that the hurling stick must have had 'Red' embossed on it and therefore comes to the conclusion that it was Red attacked him with his hurl, embossed with his name. Fletcher then goes to visit April’s cousin May to photograph this new found evidence but ends up at the wrong house where he catches sight of somebody catching 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 a text message to the present police officer informing him of the lines they would use.

The police officer puts two and two together and exposes the girls for the liars they are, and Herod Sharkey is found innocent, saving him from expulsion. April, being caught decides to drive off in her dad's car. Fletcher knows that this still does not solve the mysteries that included his assault so he meets a secret informant, and in exchange for the password of the police account he hacked earlier in the story, receives the information that he desired.

He finds that the link between the crimes ended up being the upcoming talent show at his school and it turns out that the victims each had a part in the show in some way. After trying to protect May from becoming involved with the criminal Fletcher at last finds the answer he had been looking for all along. All the victims of these crimes had been ranked higher than May in the talent show. So, Red suggests that May was behind all this. However, on stage, Fletcher proves that it was May's father, Gregor Devereux who was the culprit.

In the epilogue, Red and Fletcher decide to form a detective group. Red suggests "Moon Investigations" while Fletcher replies saying "You're half right".

Critical reception[edit]

Newsround called the book "really exciting" and said "Once you've read page one you'll be hooked to Eoin Colfer's Books".[1]


  • In the book Murt mentions an Art Fowler, this is a reference to the protagonist of Colfer's most famous series Artemis Fowl.
  • The term "A thin line between bold and bad." is also used in The Wishlist


In a September 27, 2007 interview Colfer admitted he had a rough idea for a second Half Moon book in which Moon goes undercover with a group of goths and listens to Kate Bush and Metallica. He might even write a short book with Moon in. If so he plans to expand on the history of Hazel - Moon's sister. He suggested that the book could be set two years into the future.


  1. ^ "Book Review: Half Moon Investigations". Newsround. BBC. 11 September 2007. Retrieved 8 January 2009. 

External links[edit]

Official website