What is the author's style in Stormbreaker by Anthony Horowitz?

The novel is written for young adults so it is written in a simple language that most young adults can comprehend. The language, however, is not so simple that it talks down to an older reader. The novel includes some foreign words or phrases, but these are often explained in the text and present no problem to the reader. The language also lacks some of the slang that one might expect in a novel written by a writer from England. It does, however, include some words or phrases familiar to those from England but perhaps not as familiar to those living in other countries.