Ship of Fools by Richard Paul Russo

Home to generations of humans, the starship Argonos has wandered aimlessly throughout the galaxy for hundreds of years, desperately searching for other signs of life. Now, a steady, unidentified transmission lures them toward a nearby planet, where the grisly remains of a former colony await the crew. Haunted by what they have seen, the crew has no choice but to follow when another signal beckons the Argonos into deep space-and into the dark heart of an alien mystery...

"[Russo] is not afraid to take on the question of evil in a divinely ordered universe...This is an ambitious novel of ideas that generates considerable suspense while respecting its sources, its characters, and most important, the reader."-The New York Times

"A tale of high adventure and personal drama in the far future."-Library Journal

"Relentlessly suspenseful...full of mystery...very exciting."-Science Fiction Chronicle