Orbit, New York, 2007, 1^st pr thus.  ISBN 0-316-02173-3 / 978-0-316-02173-9.  MMPB, 659 pages including Glossary of Characters and Terminology, followed by Extras.  Unread copy with light edge and cover wear, bit of colour chipping on front and along spine; lightly tanning pages.  ‘The extermination of Earth is at hand.  With his increasingly irrational leadership, Basil Wenceslas, chairman of the Hansa, has driven humanity into a corner.  His punitive treatment of the Hansa colonies and the Roamers has made enemies for the people of Earth – enemies that the Hansa cannot afford.  For the Ildirans, led by Mage-Imperator Jora’h, have formed a secret alliance – with the most dangerous enemy of all.  When the final battle with the hydrogues is joined, who will aid the people of Earth?’ (from rear wrap)