The Water's Lovely

When Ismay and Heather's stepfather was discovered dead in the bathtub nine years ago, the police concluded the drowning was an accident. But Ismay has always silently suspected that Heather might have had something to do with it. Now they're older and their lives seem to be moving happily forward. But when Heather becomes seriously involved with a man for the first time, Ismay's long-repressed memories can no longer be ignored. With painful inevitability, Ismay learns that she may not able to keep the dark truth hidden forever. 

Author: Ruth Rendell 

Publisher: Vintage Crime 

Released Date: 2008

ISBN: 9780307388018