I'm moving this weekend, and as I was sorting and packing books the other day, I came across a book in my collection that I had forgotten all about. The book was A Wrinkle in Time by Madeleine L'Engle.
A Wrinkle in Time is a Newbery award-winning sci-fi book that starts on an ominous "dark and stormy night," when the strange Mrs. Whatsit visits the Murrays' house with information about Meg's missing scientist father. Ultimately, this visit leads to Meg, her younger brother (Charles Wallace), and her classmate (Calvin) going off with Mrs. Whatsit to rescue Meg's father.
But when Mrs. Whatsit first shows up at the Murrays' house, the immediate thing she has to tell Meg's mother is, "There is such a thing as a tesseract."
So, my question for you is: In A Wrinkle in Time, what is a tesseract?
— Carly H., STACKS Staffer