Title: An Acceptable Time
Series: Polly O’Keefe, Time Quintet
Number in Series: 4 (four), 5 (five)
Author: Madeleine L’Engle
Cover Artist: unknown
Language: English
Original Publisher: Farrar, Straus and Giroux
Originally Published: November 1989
Publisher: Dell Publishing
Published: December 1990
ISBN-10: 0440208149
ISBN-13: 9780440208143
Note: People can’t seem to figure out which series they think this book is in, so I’m listing both.