The book begins with the classic line, "It was a dark and stormy night", and is the tale of a young girl, Meg Murry, whose scientist father disappears after working on a project called tesseract. After a night time visit from Mrs Whatsit (later joined by Mrs Who and Mrs Which), Meg, her brother Charles and a school friend Calvin O'Keefe, set off across time & space to find her father.
It has won all sorts of awards over the years, including the Newbury Medal, and is the first in a series of stories about the Murry and O'Keefe families.
There's a Facebook page, as well as a 50 Years, 50 Days, 50 Blogs tour which kicks off this week where bloggers are riffing about A wrinkle in time and its impact over the past 50 years.