<p> </p><h3><strong>Emily and Navin''s mother is still in a coma from the arachnopod''s poison, and there''s only one place to find help: Kanalis, the bustling, beautiful city of waterfalls. </strong></h3><p>But when Em, her brother, and Miskit and the rest of the robotic crew aboard the walking house reach the city, <strong>they quickly realize that seeking help is looking for trouble, dangerous trouble.</strong></p>