With terrific characters and a surprise-filled plot set against a well-realized backdrop of alien worlds, "Crucible" poses some of the tough questions of today: how do you choose sides amid entrenched enemies? What is morally right when it comes to biological engineering, especially in times of war? How do you overcome millenia of bloodshed and emerge unscathed?

Crucible 2005, Tor Books, New York, NY

ISBN-13: 9780765346032

Mass-market paperback

Crucible 2004, Tor Books, New York, NY

ISBN-13: 9780765306883