What is the author's style in Peter and the Shadow Thieves by Dave Barry?

Peter and the Shadow Thieves is directed at young readers and uses vocabulary and dialogue that are appropriate for that audience. Most of the characters are English and speak using British expressions and dialect. Some of the action takes place aboard a sailing ship, where the characters use jargon specific to sailing. The authors provide contextual information when these unusual terms are used so the reader can determine their meaning.