Title............................................................. Year..... ISBN.......................... Publisher
Frontier Earth (hardcover)............................... 1999...... 978-0-441-00589-5....... Ace
     Frontier Earth (paperback).......................... 2001..... 978-0-441-00794-3....... Ace
Searcher (hardcover)........................................ 2001...... 978-0-441-00799-8...... Ace
     Searcher (paperback).................................. 2001...... 978-0-441-00887-2...... Ace

My first (and second) adventure in ghost-writing.  Shhhh!  Don't tell anyone it was really me. Otherwise, I might have to kill you.