<p><b>''Reminiscent of <i>The Martian</i> and <i>World War Z</i>'' PIERCE BROWN</b><br><br><b>A twenty-story-tall metallic figure appears in the middle of Regent''s Park. The caretakers at London Zoo notice it first at around 4am. The figure, or robot, bears a great resemblance to the UN robot known as Themis . . . </b><br><br><b>Who made Themis?</b><br><br> It''s been ten years since Themis - a giant alien metal robot - was revealed to the world by Dr Rose Franklin. It now stands at the heart of the Earth Defense Corps - in case the makers of Themis return to claim it.<br><br><b>Why did they leave it here?</b><br><br> Rose and her team are still seeking answers to Themis''s origins when a second and even bigger robot appears in London''s Regent''s Park. A military response backfires, reducing half the city to bare earth.<br><br><b>And what if they come back?</b><br><br> As more robots appear across the world, Rose knows it''s a race against time to discover where they''ve come from, w