Karl Schroeder

Ventus is a 2001 science fiction/fantasy novel by Karl Schroeder. It was Schroeder's debut solo novel, and introduced his concept of thalience. The novel is available for free under the Creative Commons license at Schroeder's website. Its prequel, Lady of Mazes, was published in 2005.

Permanence is a 2002 science fiction novel by Karl Schroeder.