<p><b>Will you brave <i>The Retreat</i>? The new bestselling thriller from the author of <i>The Sanatorium.</i></b><br><br><b>** A TOP TEN SUNDAY TIMES BESTSELLER**<br>**SARAH PEARSE HAS NOW SOLD MORE THAN ONE MILLION COPIES WORLDWIDE**</b><br><br><b>They couldn''t wait to stay here.</b><br>An idyllic wellness retreat has opened on an island off the coast of Devon, promising rest and relaxation - but the island itself, known locally as Reaper''s Rock, has a dark past. Once the playground of a serial killer, it''s rumored to be cursed.<br><br><b>But now they can''t leave.</b><br>A woman is found dead below the yoga pavilion in what seems to be a tragic fall. But DS Elin Warner soon learns that the victim wasn''t a guest - she wasn''t meant to be on the island at all.<br><br><b>And they would do anything to escape . . .</b><br>The longer Elin stays, the more secrets she uncovers. And when someone else drowns in a diving incident, Elin begins to suspect that the old stories about the isla