Shepard, Sara, 1977- author.
New York : HarperTeen, 2009, c2008.
335, 8 p. ; 21 cm.
Book 4 in the series.
Reprint. Originally published: c2008.
Four girls living in a wealthy suburb discover the identity of a stalker who has been sending them shocking text messages, and uncover the mystery of who killed their childhood friend.