Book Info enlarge picture I Know What You Did Last Summer   Author: Lois Duncan ISBN: 0440228441 Format: Publish Date:                  Book Review It was only an accident -- but it would change their lives forever. Last summer, four terrified friends made a desperate pact to conceal a shocking secret. But some secrets don't stay buried, and someone has learned the truth. Someone bent on revenge. This summer, the horror is only beginning....