Oof. What to think of this bizarre hybrid entry in the world of L'Engle's Time Quintet?

I was excited to learn of this previously unpublished (at least in book form) work of Madeleine L'Engle's. I was hoping for one last fun adventure with Meg, Charles Wallace, and Calvin. Unfortunately, this was not to be.

Despite its marketing it's not really a new story - the bulk of the book is almost a direct extract from "A Wind in the Door". There is some new material at the beginning of the slim volume which seems to set it in between "Wrinkle" and "Wind" but because of the heavy lifting from "Wind" later on there's no way one could possibly read this in between the two without re-reading some of the same material in the later volume.

It's possible L'Engle meant this piece to be an "introductory" read for younger readers exploring her works for the first time, but the writing is still a bit too advanced for your average first and second grader. And why would she not choose to make a regular adaptation of "Wind" instead of this weird composite piece that doesn't really fit within any of the previous works?

Overall "Intergalactic P.S.3" has just left me befuddled. ( )