Philip K Dick Award Best Book (nominee)
Ingram In the twenty-first century, American explorers discover alien teleportation and time-travel equipment on the moon, which leads them into a multi-dimensional struggle with a maleficent entity who plans to obliterate the universe.
Used availability for William Barton's The Transmigration of Souls
January 1996 : USA Mass Market Paperback
September 2011 : USA, Canada, UK Kindle edition