The Queendom of Sol is a science fiction book series by American author Wil McCarthy. It includes The Collapsium (2000), The Wellstone (2003), Lost in Transmission (2004), and To Crush the Moon (2005). The first two novels of the series were also printed together as The Monarchs of Sol by Science Fiction Book Club (ISBN 0739433881). The Queendom referred to is the present-day Kingdom of Tonga. In the Queendom of Sol, humanity has returned to monarchism as a stabilizing force in the face of accelerating technological change. Source: Wikipedia (en)