Sister by Rosamund LuptonRead about another book on the list.
Technically this is adult fiction but it’s a good read for teens wanting a tense psychological thriller with a chilling twist. I love Rosamund Lupton’s writing and the relationship between the two sisters is skilfully drawn. The book is written in the form of a letter. Beatrice’s sister Tess has gone missing and everyone but Beatrice thinks she is dead. As Beatrice investigates, she discovers how little she really knew Tess. The ending took me completely by surprise.
Sister is one of Sophie McKenzie's top ten teen thrillers.