New York Times best-selling author Larry Niven and Mr. Lerner will be working together on two new novels, both of which will act as prequels to Niven's multiple-award-winning SF classic, Ringworld.
The publisher is Tor Books.

The first in the duo, "FLEET OF WORLDS" is scheduled (in hardback) for September 2007. "JUGGLER OF WORLDS" will likely be a 2008 release. There will be more details available as publication dates get nearer.