surely, you all know by now that The Dream Detective Agency children's novel is subtitled, "...and the case of the missing century," but how can only one hundred years have such a phenomenal impact upon a) the whole narrative and b) the whole cutural identity of mankind?
DDA#1 is a kid's book, never forget that - but that doesn't mean such a project can't explore some of the more contentious suicides and murders of our time - namely our Missing Past.
Mankind is schism'd, or lost ( twixt'd and tween'd ) and it's the job of the Dream Detectives i.e. Dierdre Openhouse and Brody Belvedere, to rediscover the place (in time) where this happened to help redirect mankind onto his/her original course.
Along the way they'll encounter DRAGONS... of course.