User blog comment:Darkcloud1111/''The Mark of Athena'' Plot Holes/@comment-153.107.33.151-20121010023019/@comment-4531192-20121015194312

Almost correct. There are different types of editors, that is, there is not only one editor responsible for a book. For example, you may have a managing editor, a contributing editor, a copy editor, and an editor-in-chief all working on one project. The copy editor is responsible for things like spelling and grammar, as well as spotting inconsistencies.

Rick may not have had the same editors for every book, but there is always someone checking for plot inconsistencies. Whoever has been doing this for The Heroes of Olympus series clearly hasn't been trying too hard. Nevertheless, we cannot blame it solely on the editors, as it is first and foremost Rick's responsibility to not have any continuity errors in his books.