Here's what Mike had to say about it on the DC Message Board...
13 is about human psychics, alien warrior maidens, vast machines at the Earth's core, and a theft and a murder that took place more or less at the time of the big bang. It's basically big, sprawling space opera stuff, with a sort of mystery element running alongside - the mystery concerning exactly what the stolen "artefact 13" actually is.
13 is about human psychics, alien warrior maidens, vast machines at the Earth's core, and a theft and a murder that took place more or less at the time of the big bang. It's basically big, sprawling space opera stuff, with a sort of mystery element running alongside - the mystery concerning exactly what the stolen "artefact 13" actually is.