<p><b>A sensational classic: this chilling tale of Siberian espionage is ''the best thriller I''ve ever read'' (Philip Pullman) ranking with ''<i>The Silence of the Lambs</i>, <i>Casino Royale</i> and <i>Smiley''s People</i>'' (<i>Spectator</i>).</b><br><b><br>''Hugely thrilling, brilliantly written, perfect ... I didn''t want this book to end.'' (Anthony Horowitz)</b><br><br><b>WITH AN INTRODUCTION BY PHILIP PULLMAN<br></b><br>Kolymsky Heights. A Siberian hell lost in endless night: the perfect setting for an underground Russian research station. It''s a place so secret it doesn''t officially exist; once there, the scientists are forbidden to leave. But one scientist is desperate to get a message to the outside world. So desperate, he sends a plea across the wildness to the West in order to summon the one man alive capable of achieving the impossible ... <br><br><b>''Sensationally good ... One of the great thrillers of the last century.'' (Charles Cumming)</b><br><b><br>''As significa