<P><B> IF YOU THINK YOU''RE ALONE:</B><br><B>THINK AGAIN </B><br><br><B><I>A scratching at the window.</I></B><br><B><I>A tap on the door.</I></B><br><B><I>What if, this time, someone is out there</I></B><B>? </B><br><br>A silent killer stalks the city, targeting those home alone at night, playing a deadly game of cat and mouse with the victims.<br><br>As panic spreads, <B>Detective Inspector</B><B>Helen Grace</B> leads the investigation, but is herself a hunted woman, her every step shadowed by a ruthless psychopath bent on revenge.<br><br>As she tracks the murderer, Grace begins to suspect there is a truly shocking home truth that connects these brutal crimes. <br><br><B>But what she will find is something more twisted than she could ever suspect...</B><br><br>*****<br><br><B>PRAISE FOR THE MILLION-COPY BESTSELLER M. J. ARLIDGE:</B><br><br>''Chilling'' <br><B><I>THE TIMES</I></B><br><br><B>''Addictive''</B><br><B><I>EXPRESS</I></B><br><br>''Truly excellent'' <br><B><I>THE SUN</I></B>